Demon slayer's Hashira of Chaos

by Artzilla406

the world of Demon Slayer is an unforgiving place for humans, fearing the night where creatures who eat human flesh called... Demons. with the King of Demons spreading his blood to new demons, but there's a small army of human that have a mission to kill them all, the Demon Slayers. their world is going to experience a new force of good, the Demons are going to face... Chaos.

1. Demon Slayer 1

At the city where Koan Seirnuyami, the red hero and agent of Chaos, is on the rooftop, ever since he got busy, he's been looking through photos.

Koan: Ever since last night, I have had this dream…a girl with a cute smile and a red bow, and I know since we were little to middle school, the girl I heard and news spread like crazy...Naoko Kirino, also known as the pumpkin queen. I remember stuff about it. I was able to track her down and find this world. It used to be part of my old one...my old home that is gone...by him. I know I searched around and never stopped to find her.

Flashback

Koan is in a police station as they see the serious red hero, and they answer his question.

Koan: So this person ended up killing students on this pumpkin night.

Chief officer: goes by the name Pumpkin Night, killed 20 people, and made a social media account to spread her legacy. The report said she was dead.

Koan: was?

Chief officer: One of my men said they found a graveyard, and we have talked with the mayor about it, and once we found her gone, we assumed a hospital patched her up, and we checked each of them, and then she vanished.

Koan: I see; thank you, gentlemen, for your time.

End flashback

The red hero sighed, then jumped off the roof and landed in the alleyway. He walked to his motorcycle and then drove off as he sniffed the area as he revved up, heading to the area as he stopped to see his old destroyed house.

Koan: So it is true, dung did it. No wonder I couldn't find Naoko or any childhood friends; he was afraid they'd get in the way of him making me this.

He got off walking, then sniffed as if Norcie's scent made. Her eyes widen, then she sniffs more dung with it along the jungle beast.

Koan: He was here...meaning he sent her to another world, bastard! But how do I find her?

He thinks, then sniffs, then sees a knife; he picks it up and licks the hilt.

Koan: Hmm, it got her fingerprint alright. (He brings out a device portal.) This will scan where she went, meaning Dung is alive! Damn it all! I thought he was dead! Oh well, I'll make sure he'll be dead in whatever world. (He pulls out his phone to text.) I'll let the girls know about this.

He presses a button as. Alright, light flashes as he arrives; he looks like it's nighttime.

Koan: Hmm, it's nighttime. Okay, time to search for her, but first. (pull out a cherry changa) cherry changa! Time! Oh boy, I can't go on a search with an empty sto—wait...why is the ground lighter and there is no air?

He looks down to notice he's very, very, very... UP HIGH IN THE SKY?!

The red hero looked at the reader and pulled out the sign that said "UH OH!" He is falling down screaming but laughing like crazy.

Koan: AAHAHAHAHA! (He noticed his cherry changa falling too.). WHAT THE?! NOT MY CHERRY CHANGA!

Meanwhile, down there on the ground are two males who have paler skin, gray pointed nails, unique red pupils, and specialized markings that resemble birthmarks that appear on their faces and are wearing kimonos. They're standing after massacring some couples as corpses at their home, guarding it with nothing to do.

Guard 1: She just up and left me! I didn't even know what to do anymore.

Guard 2: Dude, she was showing signs.

Guard 1: I know that! I just—oh God, can this day be this much worse?

with koan

Koan: HOW DARE GRAVITY DECEIVE ME AGAIN?! YOU SON OF A BI-

with the demons

Guard 1: I mean, why!? It's not like I chose it! She knows how hard this job is! She married the man who has this!

Guard 2: It's alright; let it all out.

Guard 1: She dropped this like now!

With koan

Koan: Oh! People look like tiny baby ants!

With the demons

Guard 1: She thinks I wanted this?! I have no other job! Because the identity castle is like a town of mazes and eating humans! And yeah! I come home sometimes with a 3rd eye!

Guard 1: She knows how it is.

Guard 2: What does she want from me?! She can't forget our master is someone we cannot question! I see what he does! and I did not want to be the demon! At least they may have 3rd eyes!

Guard 1: Where's the drill on duty, man? Don't let it crush you like a-

With koan

Koan: MAYDAY! MAYDAY! I AM SCARED!

With demons

Guard 1: (sniff) I just, (see a picture of a sexy demon female in a kimono) I miss her so much!

Guard 2: Hey, hey, I know what to cheer you up. Once we're done, we're going to split a child; you get the leg, and I get the wings.

Guard1: You can do that for me?

Guard 2: As much as I will let you take the first pick, I will never know to demon.

Guard 1: It's like our master made a miracle drop to heaven that-

With koan

Koan: Wait, I take it back; this is actually fun.

With demon

Guard 1: You have a good heart.

Guard 2: And do you know what you have?

Guard 1: What? (Cherry changa falls on his head.) Ow!

Guard 2: That?.

Guard 1: (pull a cherry changa) What the hell is this? (sniff it) is that cher-

Koan: YIPPIE KI YAY GRAVITY FUCKER!

Then the two guards screamed and got crushed by the falling maniac.

Then the red hero got up; as he got up, he dusted himself.

Koan: Ahaha, note to self, set the device in the ground and not up high. (Walk not paying attention to the demon thing; look around.) Hmm, a nice night.

He turns around to see the two crushed demons.

Koan: Huh? Are those two demons?

Then they got back up like nothing happened.

Demon guards: WHO THE HELL ARE YOU?!

Koan: Are you not dead?

Demon guard 1: And where did you come from!? I've never seen anyone like you before!

Koan: Wait, that smell... did you two eat some humans?

Demon Guard 2: Well, yeah, where are you?

Demon guard 1: Hold on! (sniff his scent and eyes widen) What the fuck?

Demon guard 2: What's going on?

Demon guard 1: ... Smell him quick! This is unbelievable!

Demon guard 2: (sniff and eyes widen) A half demon? No way! I must be dreaming!

Demon guard 1: There's no way a human can survive their half side.

Koan: (then pull out his Yamamoto) What two demons are talking about? If so, I am a koan slash bad demon.

Demon guard 2: Do you hear this lunatic? Think he can kill us? What is he, a demon slayer?

Demon guard 1: Must've dropped and hit his head. Let's finish this and make it quick.

Demon guard 2: Yeah! Let's kill and eat him!

But Koan innocently pulls out a giant buster sword that's twice his size.

Demon guard 1: WHAT THE FUCK!?

Demon guard 2: Dude on guard, we got this!

Demon guard 1: HE HAS A BUSTER SWORD!

Demon guard 2: So what? He doesn't have a breathing style like any demon slayer.

Demon guard 1: Hmm, I guess you're right. Come on, let's—

The two demons didn't react or notice, but their bodies were in many pieces, and they didn't regenerate. Kon stabbed the first demon's head, killing it as the first guard's body disintegrated.

Demon guard 1: Tell my wife that she's a bi- (vanished).

The demon guard looks up in fear, shaken by Koan's glowing eyes.

Demon guard 2: W-who are you?

Koan: Koan Seirnuyami.

The demon's eyes widen as he sweats like crazy, his body twitching in fear; he heard Koan's last name, which struck him in absolute fear.

Demon guard 1: ... RUN FOR IT, DUDE!

Then the two demon guards dashed away from the lunatic.

Demon guard 2: ... RUN AWAY!

Then the 2nd guard demon's body picked up the head and dashed away from the lunatic, but he appeared and then threw his buster sword to impale the body and grabbed the head.

Koan: There is a question I wanted to know, so I suggest you speak.

He glared daggers at the head.

Koan: What do you mean by demon slayers?

Demon guard 1: T-there, the Demon Slayer Corps is an organization dedicated to hunting and killing demons. Most members of the Demon Slayer Corps are combatants, known as Demon Slayers.

As the Demon Slayer Corps isn't officially recognized by the government, its members are forced to work in secrecy, which means that Demon Slayers cannot openly carry their swords in public. The majority of people are unaware of the existence of demons, and even if Demon Slayers were to reveal the truth about their job, they would be met with skepticism and disbelief from most individuals. Allowing demon slayers to openly wield swords would only incite chaos and confusion among the general population. By maintaining a low profile and avoiding drawing unnecessary attention, they can carry out their duties covertly and effectively. Nevertheless, whispers of the Demon Slayers have permeated public consciousness, existing as mere folklore in the minds of some. However, when civilians encounter demons or witness a Demon Slayer engaging a demon firsthand, they come face-to-face with the reality of their existence and the truth behind the tales they've heard.

Koan: And how do they organize?

Demon Guard 2: Surely they have a master; Demon Slayer holds the forefront position within the organization. There are hundreds of skilled and dedicated individuals who have taken up the noble duty of hunting down and eliminating demons. The highest-ranked Demon Slayers are known as the Hashira. They possess extraordinary skills in a specific breathing style. Their apprentice and eventual successor are known as the Tsuguko.

Koan: What are breathing styles?

Demon Guard 2: Breathing styles are swordsmanship styles that make use of an esoteric breathing technique known as Total Concentration Breathing practice and taught by members of the Demon Slayer Corps and are used in combat by Demon Slayers (later passed on as traditional dances post-time skip). The majority of known Breathing Styles mimic a certain element of nature (i.e., flame, water, and wind) and replicate it with the user's movements, techniques, and abilities. The weapon attacks of Demon Slayers who use Breathing Styles are also longer ranged, possibly due to shockwaves or air pressure generated from their weapon itself when swinging and striking. New Breathing Styles are always being created to suit a Demon Slayer's combat needs, which results in new weapons being utilized in demon hunting. Such breathing styles embody a bigger variety of concepts, like animals, plants, and emotions. In any case, these new creations always branch out of the five fundamental Breathing Styles. Many of them are personal creations limited to only one user due to a trait or combat style unique to them, but there are cases when branching Breathing Styles have found usage from other Demon Slayers aside from their creators. In both cases, the users are Hashira-level Demon Slayers or at least highly skilled and competent. When utilizing a Breathing Style, users automatically visualize themselves manipulating the concept behind their style, making it seem as if they were using magic, though those who are less apt and proficient in their style will visualize less of it than one who is.

Koan: I see. I have one last question... have you seen a girl with a pumpkin mask cover her face? (pull out a picture of the Pumpkin night.)

Demon guard 2: W-w-we don't know! My buddy and I were tasked with guarding by a random demon's order in case a demon slayer came nearby.

Koan then begins to smile as he grins wider.

Koan: You can say his name, right? Well, I'm sure you'll see Muzan soon in the afterlife.

Demon guard 2: (eyes widen) H-how do you know his name?! I—I didn't—

Koan shifts into his mutant form, making the head demon shocked as if he were a demon, no…a devil.

Koan: Koan is Koan.

He opened wide his mouth to show sharper teeth; the demon guard screamed to the heavens.

CHOMP!

The red hero ate the head and then ate the body but kept the kimono; he is still in his form.

Koan: Hmm, so in this world is an era of Japan; that would explain everything. Hehehe, so this is how it is. Does this muzan believe what he is? He doesn't hold a candle compared to me; what a laugh! to think this is where Naoko lands. But Koan knows she's a tough girl who can handle stuff. I'll just have to find her more, but first...(grin wider) Being a demon slayer will sound stupendous, to hunt and feast on my prey, but first...

He looks down at his attire.

Koan: need to blend in.

He then looked at the kimono in blood, then had an idea with a smirk... but looked at his fur frame.

Koan: (grin and crack his fingers) Time to get stylish. Just hold on, Naoko; Koan is coming.

Meanwhile

A random demon is running for his life as he has many cuts around his body that are healing a bit.

Demon: (panting) Is she really a demon? If so, she couldn't slaughter 10 lower ranks like a butcher! I need to run and report this about her; I thought she was a myth! And why does she partner with the rogue?!

?: Oh little toy~~~, where did you go~~~?

Demon: shit!

He quickly hid behind the trees and bushes as he kept quiet while almost done healing. He looked left and right and then spotted a shrine place; he silently went inside as he lay down, sighing in relief.

Demon: I should rest up in here and wait for that woman to be gone. She and the rogue will be bad news, I'm sure. Share this information with Master.

?: Are you sure about that~~?

He stops and then slowly turns to see the open door of two silhouettes of female women here.

Demon: FUCK!

Then came Isdien. It revealed the first girl; she was wearing a pumpkin cover head with a jack-o'-lantern smile and a bow on top.

Her uniform is a white belt and hakama skirt, also wearing a white long-sleeved collared shirt under the uniform. markably similar to a Gakuran uniform, consisting of a buttoned shirt with a white-framed collar having the kanji for Slasher engraved on the back, a shirt pocket on top of the left breast, and a white undershirt. It also consists of a white buckled belt that can be optionally tucked in with any kind of Kyahan that extends into tabi socks. The uniform buttons are gold-colored, and brown dress shoes are worn over white crew-length socks. She is holding a long, dagger-shaped katana.

Next to her is a beautiful young woman with fair skin, maroon brownish eyes, and long, less spiky, darker brown hair with a split bang with red tips that he kept in a ponytail. She is wearing a blue and white flower kimono, a black hak red coat, along with a umanori-styled hakama with a belt for her sword, black socks, and sandals.

Demon: The legend is true: the spirit of pumpkins (turn at the girl and glare) figures the traitorousness of all demons working with her.

Pumpkin girl: Hehehehe. ~~~

The demon growled and then raised his hand as bursts out of the walls are plants and vines wrapped around them, but the 2nd girl rapidly sped up and cut them all into pieces, making the demon shocked.

?: You must be eliminated.

Demon: N-no way...

Then he didn't react quick as he got cut in two halves by the pumpkin girl's sword, and then the demon went to dust, being killed.

?: It would have been fast if you didn't play with them earlier, Naoko.

Naoko: Oh, come on~, it's more fun that way~.

?: I sometimes wonder how I got myself involved when I first met you.

Naoko: Oh, don't be like that, Hinode~~. You know you're fun when you let loose~~, when you become..."her"~~

Hinode: Please don't remind or mention 'her.'.

Naoka: Okay, okay, (pouted) party pooper.

Then they heard a bloody scream and a crazy laughter echoing through the woods, making the two alarmed, but Naoko felt as if that laughing voice sounded familiar.

Meanwhile with koan

The red hero is now wearing the grey kimono with the red fur that became a cape and gray hakama pants tied with a red uwa-obi. He has fingerless red guard gloves, gray socks with sandals, and a straw samurai hat. He even wears a white oni mask with a red line on it and wild white hair. He's at the deep, dark area of the woods, at the opening field.

Koan: (sat down on a rock) Hmmm, I have fun and stuff already.

What is behind him is filled with each of the collected demons slowly dying, disintegrated; each of them is either inhuman in shape, with many eyes, arms, and heads, big or small. They're all torn into pieces, chomped up and blood everywhere, each impaled by spears, sais, sickles, and many holes, burned down. Most of all, their faces are a nightmare grin as they were infected by laughter, meaning Koan has slaughtered and devoured them all while licking his fingers of the blood.
Leaving a carved symbol of an omni with a smiley face on it to mark each area as a sign, in blood.

Koan: Hmm, what should I do? Maybe if Koan is lucky, he will find a place or animal to eat! Can't travel with an empty stomach; I want to see what type of food they got! Perhaps the same as in Japan.

Then he got up and looked at his hand.

Koan: Hmm, it would seem my mutant form is able to adapt pretty quickly and made a mode in this world, no doubt about it. I need to see what my form can do, demon blood art, but... if I do this.

Koan felt something, as if a calling to him...a scent that made him walk forward, and then he saw in the woods that the light from the moon shone down to reveal two swords with sheaths stabbed to the ground wrapped in bandages.

Koan: two katanas?

He walked up to grab them, then noticed they were stuck; he gripped them to yank them out with force, and he pulled the two out of the scabbard. The 1st sword turned into gold, and the 2nd sword turned into crimson.

Koan: Woah, these swords seem like they haven't been out for years, or forever. It is not old, no crack, no nothing...so perfectly well done.

He swiftly swung the two swords and then cut the trees off very cleanly.

Koan: And yet it is like cutting a cake, fish, and fruit.

The red hero kept his very own sword around his belt and began walking through the forest, then almost saw the field outside of the road until he sniffed.

Koan: I know you're out there; come on out.

He sees that what is coming out is a curvaceous young woman of deceptively muscular build and a pale skin complexion. She is called beautiful and charming on multiple occasions. She stands slightly taller than average. She has large, round, pale green eyes with long eyelashes and many notable white sparkles reflecting light off of them, a small beauty mark beneath each of them, and light pink lips. has long and visibly thick sakura pink hair that fades into a lime green color at the halfway point, which she wears in three thick braids. She has five shorter, choppy clumps hanging over her face as voluminous bangs, the tips lime green as well.

He can tell this girl wears a heavily modified version of the standard black Demon Slayer uniform, along with a plain white haori that was. Because of its tight fit, the chest area of her jacket and her undershirt is left unbuttoned, and she wears a short pleated mini skirt in place of the usual tattsuke-hakama pants. Additionally, she wears a pair of lime green thigh-high stockings layered with the vertically striped lime green stockings and a pair of white zōri with pink straps tied and fastened with a bow on the front.
Koan: ... sakuramochi?

The red hero's stomach starts to growl, which makes him look at his stomach.

Koan: ... you betray me.

He looked back at the girl.

Koan: (waving his right arm) Yellow Pretty Sakuramochi, what are you doing?

?: Oh... hello, are you hungry?

Koan: Yebba! Me koan hungry after killing 20 demons that koan walked by.

?: (shocked) Y-y-y-you killed demons?! All 20 of them by yourself?!

Koan: Yep, they were rude and very bad (stomach growled louder)... Food.

?: (smile) Well, don't you worry; I know somewhere to help you eat. Oh, I almost forgot; my name is Mitsuri Kanroji.

Koan: me koan.

He removes his mask and pulls his trash down, revealing his face; this makes Misturi's face turn red and her pupils heart-eyed. Her heart pounds like a drum.

Koan: (smile) It is nice to meet you, Misturi.

Misturi(steam out of her ears): Oh my goodness, he's so handsome!

Naoko: Misturi!

She turns to see Naoko walking over.

Naoko: Sorry, but you missed it.

Misturi: (pouted) I told you to wait up; you got me scared if you get very hurt.

Naoko: (giggle) Sorry, I promise. I'll treat you.

Misturi: (twinkle) Really! Well, I hope you don't mind letting this handsome, cute guy be with us.

Naoko: Who? You-

She turns as her eyes behind the mask widen in shock to see Koan; he turns, and he gasps in shock happily. She is standing there with her hands shaking; despite his appearance being different with red hair, fresh fair light skin, yellow eyes, and different hair, she can recognize her childhood friend that she loves. Flashback to her memories of Koan and her as little kids, laughing and playing, then at middle school as he complicates and like her red bow.

Koan: (smile) Naoko, it's been a while. I like your mask.

Naoko ran as she removed her pumpkin mask to reveal a woman with shoulder-length brown hair, topped with a giant red ribbon, yellow heart earrings, and light brown eyes.

She's in tears, running to tackle him in a hug.

Koan: DEER LAMPS!

Naoko: WAAAAAHHHHH! KOAN! IT'S YOU!Koan: (smiling and petting) Yes, Noako, it is me.

Noako: I thought I'd never get to see you again.

Misturi: Naoko, do you know him?

Koan: Childhood friend, how about we stop at a place to eat?

Then Msituri has them follow to a place for soba noodles, but they didn't know that Hinode is paying, staring at Koan.

Hinode: Could it be?

Koan and Naoko are along while Msituri is eating many bowls of soba ramen noodles.

Koan: Do you want to go first or me?

Naoko: You...

Koan: (sigh) I know what happened to you when I discovered it, and our old friend Kazuya Makino was there, but I know he was a good friend.

Naoko: Yes, he didn't give up on me no matter what I became... Do you think I'm a monster?

Koan: No! Never! I was furious about what those students did to you, and no one justified it! You went through a lot and went vigilante with Vengeance! I'm so sorry! I—I wasn't there; I could've protected you...you suffer too much.

Naoko is in tears and smiling hearing that from the boy she loves.

Naoko: It's okay, Koan; hearing you mean those wonderful words means you still care and love Ms. I'm just happy that you're alive.

Koan: How did you end up here? Matter of fact, how do you survive? I heard you die before.

Naoko: I died because Naruto's father used his position to drop me in a twenty-meter hole where they were building. I fell on two poles that stabbed right into my stomach. I revived from my grave, Matsui standing nearby. It's soon revealed that my body was fully healed and lives in a mansion with a doctor. The doctor found me barely alive and nursed me back to health and returned her face to what it once was, but I suffered from amnesia. Despite this, I later become the Pumpkin Queen once more, going on and killing corrupt officials and criminals under Doctor Higa's manipulation.

The flashback shows that Ryuchi took me into his mansion, where he used every chemical and surgery to fully heal me a year ago and now uses me for his plans to make the world pure. However, after the face restoration failed, I grew impatient and worried. I slowly started to regain her memories of Kazuya and mostly a person, which is a blurry, important person I love dear to my heart.

Koan: Me?

Naoko: Yes, I was confused how or why, as if it was kept locked. I would later encounter Detective Matsui again and try to kill him until he says Kazuya's name, which causes her to regain my memories. But when I saw what was inside my boy, an old pocket sticker. The one we both like and decorated, I slowly regain my memories of you.

Koan: What happens next?

Naoko: I save the clues about you for later. I ask where he is, and after being told he was in a clinic, I begin to panic, asking if it was the Hirayama clinic in particular. Finding out from Matsui that it is indeed the Hirayama clinic, I begin to reveal everything to Matsui about how the Kuroki family had intentionally locked me away to the abuse I and the other patients were put through. Realizing Kazuya is in trouble, Matsui tries phoning for backup; however, I impale his hand and phone with one of the picks into a nearby tree, running off as I intend to go and save Kazuya by myself. I get changed into my Pumpkin Night gear and prepare to leave on my bike before being encountered by Ryuchi, having heard the sounds of my starting the bike up. As Ryuchi demands that I come with him and begins to yell how I was his in order to "cleanse the world," he quickly realizes I have regained my memories and is promptly run over by her as he refuses to move from where he stood. I soon escape and begin to drive to the clinic to rescue Kazuya.

Koan: Let me guess, chaos, and you manage to save him?

Naoko: Yes, he was a mess until he snapped out of it and gained a new ally. We were going on an island, but oddly this guy... (growled in fury) dung is odd. Everyone thinks I was dead and brought some neighborhood from the sidewalk. He revealed that he was the reason he separated you and part of your world to make mine. He told me the location at your place, and once he gives me full memories...

Flashback

Naoko rushed in speedily as she worried and hoped Koan was alright. Once she arrived to see it was nothing but destroyed humans and corpses of bones, she covered her mouth in shock.

As Dong walked in with an evil smirk

Naoko: What happened...h-how?

Dung: I happen, Jennifer was nice, pretended to be his lover until breaking his heart at school, killing his step-parents and step-sister, amusing.

Naoka: Lory...not you too! What did you do?

Dung: I have Jennifer; my allies and I tormented Koan.

He shows her his phone, making the pumpkin queen horrified and in tears seeing the childhood friend of her tormentors beyond not being human nonstop and seeing Jennifer dump him in the pit, turning him into absolute true madness.

Dung: Now a broken and insane man, it fit him nicely now that he's dead.

Naoko: (raised her knife and pounced) YOU BASTARD!

Dung swiftly raised his hand as a portal opened, sent her in, and then vanished.

End flashback

Naoko: And I ended up here, a world of Japan's old era and filled with demons, and misturi found me and took me in. It wasn't easy, but it was worth it and fun; I even made new friends, and I became a Hashira.

Naoko looks at Koan and then touches his cheek.

Naoko: Koan... I can't believe this dung, and Jennifer does this to you.

Koan: I see, well...like us, having one rotten, bad day mutated me, and I lost my sanity, and this…

He shifts into his half-mutant form, surprising her as Naoko covers her mouth.

Koan: I know. What you went through is terrible, and me...beyond as people see me as a demon but worse...a monster.

Naoko: (held his cheek) You're not a monster; we're one in the same.

She then hugs him.

Naoko: My poor koan, you suffer a lot as well.

Koan: And yet you hug me? Even I'm insane?

Naoko: (smile) You may look different, but you're still the same Koan I know and remember. You came all this way to find me, and that proves no monster is like that.

Koan is in tears, then wipes them, then hugs her back. The two stare, then kiss, and he turns back to normal.

Koan: Thank you, and let me tell you my invention.

10 minutes later

Naoko is mind-blown that Koan told him everything that happened in his life and his rather Ben

Naoko: Woah...

Koan: Yep, that's about it.

The red hero sniffed as he turned; Naoko turned to see Misturi standing in awe and dumbfounded, and his eyes were a little puffy, meaning he heard his life.

Koan: misturi...

Naoko: How much did you hear?

Msituri: (anime tears) A lot; it's so sad! Oh Koan, you poor guy! (She then tackles Koam in a hug.)

Naoko: Hey!

Koan: PAINT COCONUT!

Misturi: is going to be okay, Koan! You're not alone anymore.

Koan: Okie society, now we can eat.

As of right now, the 3 sitting at the stool at some ramen stand, Mitsuri and Koan, have 18 bowls of soba noodles.

Koan (slurp): Nothing like a good old ramen to feel fresh like a daisy (laugh insane and slurp more noodles).

Misturi: And people say I eat a lot.

Naoko: So, Koan, what is your next plan?

Koan: Well, uh, Misturi, about what you heard...

Misturi: Your secret is safe with me.

Koan: Thank you. Also, I decided to become a demon slayer.

Then he opened his mouth and slurped the entire contents of his house empty.

Koan: But I got info that it needs training and a test.

Misturi: Oh my goodness!

Naoko: I love it that you do that~.

Koan: Yep, sure, I'm even hungry after eating demons as well, mixed with it.

Naoko: You eat demons? ... Fuck yes~~~.

Misturi: I've never seen someone eat a demon. (See Koan's two katana.) You already have two Nichirin swords?

Koan: Nichir—what now?

Misturi: their special swords that are created by a special ore that absorbs sun energy. They're special because they have the power to kill demons during the night.

Naoko: Also, whenever Demon Slayers have their sword, it changes color depending on their breathing style.

Koan: What breathing style do you two have?

Misturi: Well, my breathing style is love.

Naoko: Mine is a branding style of curse.

Koan: What is the Hashida breathing style?

Misturi: watering breathing is blue, flame is red, wind is green, stone is gray, flower is light pink, insect is lavender blue, serpent is lavender, mine is dark pink, sound is amber, and mist is white.

Naoko: And mine is orange.

Koan: (unsheathed his two Nichirin swords) Mine is crimson red, and mine is gold.

Misturi: Oh wow, those are rare.

Naoko: Where do you find them?

Koan: Somewhere in the deep forest, when the moon shone down on them, I stabbed it inside a stone. Once I unsheathed it, it looked very done, sharp, and smooth. Despite it seeming wrapped in bandages, it was ancient; I felt it calling for me. So I pick it up, and now it's mine.

Misturi: Those two swords… Wait a minute, I heard this legend... uh, Naoko... what's his last name?

Naoko: Seirnuyami?

Misturi: SEIRNUYAMI?!

Koan: Heke?

Misturi: ... (held his shoulders) Koan, you must come with me to the Demon Slayers association! The master must see you!

Koan: Naoko, what's going on here?

Naoko: I'm as confused as you are!

Koan: Uh, why must Koan go to the Demon Slayers association? Something wrong?

Misturi: It's very important for you to meet him, and he wishes to meet with you as soon as possible!

Koan: Okie dokie, but first (point the crow on the tree, with a clover-shaped crown, similar to Mitsuri's Nichirin Sword tsuba). Can Koan eat talking girl crow?

Misturi: N-no, no! That's my crow! He informs me of where the nearest demon is all over the land.

Koan: Gero?

Naoko: They're called Kasugai Crows; they are crows that are used by the Demon Slayer Corps, primarily for communication. Each of them is assigned to a Demon Slayer Corps member. They are responsible for delivering messages to their designated sea crows; they are special in that they can speak in full sentences, though their speech is very loud and limited. Most generally look and speak similarly.

Koan: Ooooh, where's yours?

She pointed to see a crow with red eyes; the two crows flew off.

Misturi: Now they're letting the Hashira know about you coming with me.

Koan: As long as Koan can be friends with them, like pretty sakuramochi.

Misturi: (hand on her cheeks and blush) Oh, stop it, you. Anyway, we have to go.

Koan nodded; he and Naoko followed Misturi going to the headquarters while Hinode watched by the trees.

Hinode: Is it him, really him...?

Koan: (next to her) What are you watching?

She jumped back to see Koan make her surprise; she thought the red hero was with Misturi and Naoko.

Hinode: You, but weren't you with—

Koan: I'm the duplicate; I noticed you were spying on us the whole time, so I kept that quiet. Judging that it seems Naoko knows you before Misturi shows up and Naoko came to us by herself, who are you anyway? You do not identify as a demon slayer but fought like one.

Hinode: I see.

Koan: Got a name?

Hinode: Hinode Hasu.

Koan: And you heard from Naoko, Misturi, and me, right?

She nodded.

Koan slightly narrowed his eyes.

Koan: ...You're a demon, aren't you?

Hinode: Yeah? What about it?

Koan: No need to act it; you know my last name, so drop the tough act. It's okay; I'm here, and we're in a safe area alone.

She didn't say a word, then sighed.

Koan: There's no point hiding it, and I won't tell Msituri or anyone, knowing Naoko is the only person and friend who knows your secret. A friend of Naoko's is a friend of mine.

Hinode: I was once human; my mother and I were shrine maidens. To our home, my father, who's a farmer who helps sell vegetables. (She rubs her arm to look down.) But then it happened. When I was 14, the people were attacked by many demons claiming their territory. I was scared and running to find my parents, but I saw them killed by a demon with six eyes. He got the knife ready, but I was scared, but I couldn't back down as I wanted the blessing of my soul. I was thinking if I struck him, I could kill him by cutting his head off. Once I did that, he was too fast, but I cut his cheeks. He was impressed as this demon didn't kill me; I told him I'd rather die than be eaten. He acknowledged my bravery and wanted to test me; he forced me to drink his blood, turning me into...them. He trains me for now to wish in order to be strong, but he doubts if I am going to be on his level. After 3 years of hiding in the shadows, avoiding the hunger of blood, the nightmare, and the trauma, I turn into something I hate... I fall into despair; sometimes I don't gain control over when I turn into "her.". Until then, in my dream, I felt a sign, a being who I prayed to when I was a shrine maiden to worship the divine one.

Koan: What were your hopes for returns?

Hinode: Yes, once the demon was done watching me and training me, he let me go and gave me the sword of a demon slayer he killed. Despite not being able to, I would rather sue it for a fight! I told him if I ever see him...I will kill him someday. He told me to hope we never cross paths again, or else he won't hold back. He knows I won't go to the darkness like him and his master, who made these disgusting creatures. So now, thanks to him, the demons see me as a traitor, the rogue. That's what they call me... My body changed, but not my soul, even if the inner demon tried to battle me. But I do miss being human and weak to the sun; I can't always hide in the shadow and wait for night.

Koan: I'm sorry for what you've been through. Who is this demon that trained you? He seems like the person who spared you.

Hinode: Kokushibo, he's the upper rank and the strongest among most demons.

Koan: I see, and who is this her you speak of?

Hinode: I have a split personality; she was born during my trauma and the effect of becoming a demon. She took over when I triggered too much fury, tasted blood, and knocked unconscious. She is the one who helps with the task for Kokushibo and some tasks of killing, but I fought her and let her have fun only killing demons, which, thank God, she is interested in. Her name is Yonaka. She and Naoka get along, but I keep my eye on her so she won't be too reckless and get anyone hurt.

Koan: Can I meet her?

Hinode: I would deny it, but she is already aware, and knowing you. I trust you...be careful.

He nodded, and Hinode took a deep breath with her eyes closed; her head went down, and her arms went limp. Her brown hair color is turning pitch black; her hair is a little more spiky with red streaks showing. Her kimono is changing to pitch black with red roses and rose petal patterns.

Koan: I can feel, so this must be her split personality and using her demon abilities. Hahahah, a tough and cold spirit, Koan-like. But you know my last name by eavesdropping. So drop the tough act. It's okay; I'm here, and we're in a safe area all alone.

She didn't say a word, then sighed.

Koan: There's no point hiding it, and I won't tell Msituri or anyone, knowing Naoko is the only person and friend who knows your secret; a friend of Naoko is a friend of mine.

Hinode: I was once human; my mother and I were shrine maidens. To our home, my father, who's a farmer who helps sell vegetables. (She rubs her arm to look down.) But then it happened. When I was 14, the people were attacked by many demons claiming their territory. I was scared and running to find my parents, but I saw them killed by a demon with six eyes. He got the knife ready, but I was scared, but I couldn't back down as I wanted the blessing of my soul. I was thinking if I struck him, I could kill him by cutting his head off. Once I did that, he was too fast, but I cut his cheeks. He was impressed as this demon didn't kill me; I told him I'd rather die than be eaten. He acknowledged my bravery and wanted to test me; he forced me to drink his blood, turning me into...them. He trains me for now to wish in order to be strong, but he doubts if I am going to be on his level. After 3 years of hiding in the shadows, avoiding the hunger of blood, the nightmare, and the trauma, I turn into something I hate... I fall into despair; sometimes I don't gain control over when I turn into "her.". Until then, in my dream, I felt a sign, a being who I prayed to when I was a shrine maiden to worship the divine one.

Koan: What were your hopes for returns?

Hinode: Yes, once the demon was done watching me and training me, he let me go and gave me the sword of a demon slayer he killed. Despite not being able to, I would rather sue it for a fight! I told him if I ever see him...I will kill him someday. He told me to hope we never cross paths again, or else he won't hold back. He knows I won't go to the darkness like him and his master, who made these disgusting creatures. So now, thanks to him, the demons see me as a traitor, the rogue. That's what they call me... My body changed, but not my soul, even if the inner demon tried to battle me. But I do miss being human and weak to the sun; I can't always hide in the shadow and wait for night.

Koan: I'm sorry for what you've been through. Who is this demon that trained you? He seems like the person who spared you.

Hinode: Kokushibo, he's the upper rank and the strongest among most demons.

Koan: I see, and who is this her you speak of?

Hinode: I have a split personality; she was born during my trauma and the effect of becoming a demon. She took over when I triggered too much fury, tasted blood, and knocked unconscious. She is the one who helps with the task for Kokushibo and some tasks of killing, but I fought her and let her have fun only killing demons, which, thank God, she is interested in. Her name is Yonaka. She and Naoka get along, but I keep my eye on her so she won't be too reckless and get anyone hurt.

Koan: Can I meet her?

Hinode: I would decline it, but she is already aware, and knowing you. I trust you...be careful.
He nodded, and Hinode took a deep breath with her eyes closed; her head went down, and her arms went limp. Her brown hair color is turning pitch black; her hair is a little more spiky with red streaks showing. Her kimono is changing to black and red line sleeves, a yukata, attached black sleeves, black legging socks, and red sandals, as her cleavage is showing.

Koan: I can feel it, so this must be her split personality and using her demon abilities. Interesting way if demons can change their outfits.

Hinode?: Huh?

Koan: Yellow, you must be a Hindu's split personality.

Hindu? (smile seductively) Hmm~~ she isn't kidding about meeting a handsome man like yourself~~

She swayed her hips to lean at his chest to pet his hair as he purred.

Hindu? (giggle) How cute; my name is Yonaka; nice to meet you, Koan. ~~

Koan: You too! So you seem to use her demon power, huh?

Yonaka: I normally kill and hunt humans, but I switch to demons that interest me. She can be uptight to keep me locked up; she knows she needs me—otherwise she'll die.

Koan: A better chance to survive is working together...what if I told her that I can give her the ability to walk at daylight again?

Yonaka: (surprised) You can?

Koan: That is up to you and her to think about it. (He smirks and touches her chin.). ) I'll be waiting. (blow her war)

She moans at that, then sees him poof; she smirks, then flicks her hair.

Yonaka: Well, this is getting interesting ~~.

The next day

Somewhere Koan is still asleep with his mask and his straw hat on.

Koan: (muttered) ZZZZZZZZZZ... No horse! You aren't allowed to paint my house orange; I want it with orange dots... ZZZZZZZZZZZ...

Misturi looked at the sleeping red samurai with a small smile.

Naoko: Hehehe, he is still the same koan.

Misturi then petted his hair; she felt how soft it was, and he purred.

Misturi: He's so adorable.

Kaon: I will capture the root beer fish…ZZZZ.

Misturi: root beer?

Koan: (woke up and got up) WHERE?!

Mitsuri: What is this... root beer?

Koan: Where I am from is a unique drink there is, even someday in this world will soon discord it until then. Also, good morning, pumpkin queen! Morning sakuramochi! Are we here?

Naoko: Almost there.

Koan got up to see their inside a shrine house to stop for a sleep.

Misutri: We decided to stop by and rest here in the shrine.

Koan: Ooh, okay, anyway! Time for breakfast!

He pulled out his red fur cape, green tea, 4 Tamagoyaki, 4 steamed white rice, and 4 bowls of miso soup on the table.

Misturi: (twink pupils) PH WOW! HOW'D YOU DO THAT?!

Koan: Koan is Koan!

Naoko: (giggle) And that's why I love him~~

The three eat their food; Msithri enjoys it so much as her feelings for Koan grow more after they are done. Koan followed them up to the top of the mountains, where they saw a Japanese temple house.

Misturi: Here we are.

Naokoa: Welcome to the headquarters of Demon Slayer.

Koan: Oooooooooh! It's big like my head!

Misty giggle of his silliness.

Koan follows then at the spot as Koan sniffs around.

Koan: 4 girls, 4 guys, their scenes are the same as Naoko and Mitsuri.

Naoko: (smirk) Looks like they're here in time.

Koan: the Hashira?

Msituri: Yep!

The red hero turned to see the Hashira who arrived.

a fairly tall young man of a lean, muscular stature and pale complexion, who is almost always seen wearing a stoic expression. He has choppy raven-black hair of uneven lengths, with jaw-length side bangs, a low messy ponytail at the base of his neck, and bangs falling over his eyes in a choppy fringe. His eyes are sharp and moderately large, having irises a lapis blue color and their pupils a navy blue, sometimes having his irises completely opaque and empty, just in lapis blue color, and are framed by thin eyebrows. wears a black standard Demon Slayer uniform, tinted in charcoal color in the anime, consisting of a button-up jacket with golden buttons, a stand collar and long sleeves, a white belt, and a tattsuke hakama pants wrapped by white kyahan, having a pair of white zōri with dark blue straps and tabi socks underneath being the same color as his uniform. Over this, she wears a haori that's split down the middle into two different halves: the right one in a carmine color and the left one in a geometrically patterned rhombus print in green, dark green, orange, and yellow.

a hulking male figure among the Demon Slayers. He is one of the tallest, easily towering over his fellow Hashira. He is powerfully built and extremely muscular. He has spiky black hair and a prominent scar running horizontally across his forehead. Having been blind since childhood, he has white eyes with no visible irises or pupils. wears a black and white uniform typical of a Demon Slayer, with bandages over his shins resembling kyahan and white zōri with an olive green happi draped over his shoulders. The collared frame of the happi contains the kanji for the Japanese Nianfo/Shin Buddha chant from the top down, along with the separate kanji all over at the back. He also sports a large-beaded necklace around his neck and carries a set of ojuzu beads when he is not engaged in battle.

A boy of fair skin complexion, short stature, and a lean muscular build, along with long straight hair of a raven-black color that fades to a cyan color as it approaches his waist. He wears his hair loose with two clumps protruding slightly from each side of his head, a set of marginally shorter hair left down to frame his face, and unruly bangs over his forehead. He also possesses large, empty-looking cyan eyes.

Empty-looking eyes seem to now have a hopeful glimmer that is accompanied with a more upbeat and cheery expression, wearing a black standard Demon Slayer uniform, tinted bluish black in the anime, consisting of a button-up jacket with a stand collar. However, he wears longer, looser sleeves that are more reminiscent of those of a kimono than of the standard uniform shirt-like cuff sleeves. Along with this, in the place of the standard tattsuke hakama wrapped by a pair of white kyahan around his calves, he wears his hakama in the umanori style, which, along with his style of sleeves, gives a loose and oversized appearance to his whole garment. He also has dark blue tabi socks and a pair of white zōri with dark blue straps.

A young man of tall stature and lean, muscular build. He had long, bright yellow hair with red streaks akin to flames, along with two shoulder-length bangs and two chin-length bangs on the side of his head, black forked eyebrows, and golden eyes that fade to red with white pupils. He was known to be charismatic and had an air of great optimism, having an enthusiastic smile plastered on his face nearly all the time. Wore the standard black Demon Slayer uniform, tinted brown in the anime, which consisted of a brown button-up jacket with a stand collar and long sleeves, a white belt around his waist, and tattsuke-hakama pants. Over this, he wore a haori with a white-yellow gradient pattern and red flame-like ridges. He wore a red kyahan with yellow flames erupting from the bottom up, with pale brown tabi socks and a pair of white zōri with red straps. He only wore the regular Demon Slayer uniform, but as he rose up the ranks, Kyojuro started wearing a completely white haori before donning his signature flame-patterned one.

a very tall, broad-shouldered, and muscular man with lightly tanned skin and white hair. His hair is of an uneven length, the longest strands reaching his shoulders, and is styled with three more notable, shorter clumps arching up to fall as bangs between his eyes and on either side of his face. He has quite thin, maroon eyes that appear to slant inwards, each long eyelash flowing to the far side of his face. ; this has led him to use his looks as a tool for his missions whenever persuasion is necessary.
wears a sleeveless version of the standard black Demon Slayer uniform, tinted dark turquoise, along with a wrap of burgundy cloth around his calves with his tattsuke-hakama pants tucked in, and white-strapped Zōri. He also wears two thick, golden rings around his upper arms and what appear to be a pair of fingerless blue gloves, secured around his middle finger with a band of white and his wrists with another set of thinner gold rings, this time with two on each side. As well as this, he sports a white head wrap that covers his hair, leaving only a thin ponytail visible to fall behind his head from between its layers, which is adorned with a large headband of pale gray that's decorated by six light pink gemstones, three large and arranged in a line, and three small and arranged in a triangle to the far left. A chain of smaller, pale blue gemstones hangs from each side of this headdress, framing his face, and he also wears what looks to be red eye make-up around his left eye, consisting of alternating large and small dots that run inwards, towards his eye.

A petite young woman with a slender build and a fairly pale complexion. She has large eyes that lack pupils, only a haze of gradient purple, making her eyes appear similar to those of insects, and rose pink lips. She has raven-black wavy hair that fades into a dark purple hue at the ends, styled at the back of her head into a flat yakai-maki bun fastened with a white, turquoise, and light purple butterfly ornament. She has center-split, ear-length, voluminous curtain bangs that flow down to frame the sides of her face, with two slightly thinner chin-length locks of hair in front of her ears below them. Both of which grow an inch longer later on in the series. She stands out among the more physically imposing Hashira due to her diminutive stature and small frame, which is later reinforced by her mentioning that she does not possess enough physical strength to decapitate a demon as the others do. wears a dark purple tinted standard Demon Slayer uniform, consisting of a button-up jacket with golden buttons, a stand collar, and long sleeves, having the kanji for "Destroy" written on the back, a shirt pocket on top of the left breast, matching the dark purple color of her tabi socks and her long saggy tattsuke hakama pants, that is wrapped by a pair of white butterfly-patterned Kyahan fading into a pale turquoise to pink shade around her lower legs, fastened with white ribbons. Over her uniform, she wears a white haori.

A young woman of short stature, pale skin complexion, and a slightly muscular build. She has straight-edged raven-black hair of varying bowl lengths, the longest reaching down to her shoulders and the shortest stopping at her cheekbones, which she wears down with two shorter strands hanging between her eyes. Her eyes are almond-shaped and tilt upwards on the far sides and are uniquely colored due to Obanai possessing heterochromia; her right eye is yellow and her left eye is teal. She is partially blind, barely able to see out of her right eye. Her mouth is usually hidden by the bandage she wears over her lower face.

She wears a black standard Demon Slayer uniform, tinted deep koamaru , along with a black and white striped haori and a skirt , the hem and cuffs of which are striped length ways rather than vertically, which covers her hands. also sports bandages as her leg-wraps around her calves giving the resemblance of more classic kyahan, as well as another set of bandages that cover her mouth, and white with blue-strapped zōri on her feet. She is also always seen with her white snake, wrapped around her shoulders.
A tomboyish woman is little muscle build, with spiky long white hair in a ponytail and large almond-shaped eyes framed with long eyelashes; her purple irises also appear to have dark swirls within them. She also has dark patches beneath her eyes, making her appear perpetually tired or restless. Her face and body are covered with scars, accrued. He is usually seen wearing a crazed expression on his face. She wears a black standard Demon Slayer uniform, tinted dark green, unbuttoned to expose her cleavage, covered in bandages and abs with a white long-sleeved haori over it with the kanji for kill etched on the back, white buckles around her shins, and tabi socks with a pair of white zōri with green straps.

And last, another tomboy female with darker blue hair with a bang split in her right, wearing a white and red oni mask like Koan, earrings pierced, She is wearing a demon slayer outfit with sleeves; the top is unbuttoned but with bandages wrapped around her big breasts, and her hakuman color is black, with white socks and sandals. A red and yellow light samurai thigh pad, her upper brown kimono, red beads on her right wrist, an armband on it, and white fingerless gloves.
Koan: So...these are the Hashira: Giyu Tomioka, the water Hashira; Gyomei Himejima, the stone Hashira; Muichiro Tokito, the Mist Hashira; Kyojuro Rengoku, the Flame Hashira; and Tengen Uzui, the Sound Hashira. Shinobu Kocho the Insect Hashira, Otone Iguro the Serpent Hashira, Shiniqua Shinazugawa the Wind Hashira, and lastly Hibiku Aka the Echo Hashira.

Mitsuri: This way.

Koan: Yebba!

They walk at the front of the place while the Hashira hasn't said a word but stares at the red samurai, who is now at the meeting spot. Misturi and Naoko join with the Hashira, waiting for their masters.

Koan sat down and then pulled out his fur frame, a pyramid of 50 rice balls. They saw Koan, who still had his mask and straw hat; he removed the bottom part of the mask and then began showing it; he chowed down on them.

Koan: NOM! NOM! NOM! NOM! NOM! NOM! NOM! NOM! NOM! NOM! (Pull out a root beer jug to drink it.)

Shinbou: Oh my, he has quite the appetite, like you, Kanroji, so you and Kirino found him?

Misturi: Yep, and he is able to survive handling demons.

Koan gulped all the rice balls, then he removed his mask and straw hat and then gave a bow to them. Make Shinbou and Hikbu blush. Notone and Ahiniqueq looked away, blushing, trying to hide it.

Koan: That was a good rice ball!

Then walking up to the room is a man with light skin and black shoulder-length hair. His forehead and eyes have a viable rotting look and are blind, wearing a plain black kimono secured with a tan-colored braided obi over a white juban. He also wears a white, calf-length haori with a unique design of gradient flames of the colors purple and salmon pink rising from the hem up to the half of the sleeves. Guiding him are a set of twins; one has short black hair, and the other has short white hair, both wearing small kimonos. Koan took notice and swallowed the rice balls and was in awe.

?: Ah, you must be the young man who has the Seirnuyami name. My apologies for the sudden invitation, but... I welcome you.

Koan: No need to worry sir, I was wondering how will I come to request being a demon slayer, it was like luck or fate of encountering misturi and Naoko, speaking of naoko...

Then he goes on his knee and bows his head to the ground.

Koan: My name is Koan Kasai Seirnuyami. I wanted to thank you and the Demon Slayer Corp for taking care of my childhood friend Naoko Kirino. She means a lot to me, and I was so worried, searching all over to find her and never giving up hope. I am forever in your debt and wanted to show you all my gratitude.

?: I understand, young man (bowed back). She told me so much about you. I've been waiting for this day.

Koan: (head up) Forgive me if I'm curious, but when Misturi asked Naoko if she had heard of my last name, it sounded like it was extremely important. Despite never having met my real parents while I was adopted.

?: That's because I've known your parents, young one.

This makes the red hero's eyes widen as his pupils shrink, as he almost stumbles. That this shocked him so much as Naoko can tell; she felt bad for her childhood, who had never met his real parents since birth and was raised at the orphanage.

Koan: ...Y-You do?

?: Yes, I do, and they were my most trusted allies.

Koan: My mom, my dad...what's their reputation in here? What are they like?

?: I will tell you everything you need to know. (realizing something) Oh, forgive me, I haven't introduced myself... My name is Kagaya Ubuyashiki. A pleasure to meet you, my boy.

Koan: The pleasure is all mine.

Ubuyashiki: Anyway, long ago, so very long that your parents, Hikari and Lilith Seiruniyami, were allies of the first demon slayer. Your mother was known as the Oni Princess that so many demons were afraid of as a living nightmare, to punish the demons and ask if they feel remorse; your father is the most kind, pure, helpful, and selfless person. As a monk who covers his face with a komuso, only trust those who show it. He's a guardian to those who are lost and like pure light at night, despised by demons, and his light rivals the sun. He was known as the haven of sailors. They helped the Hashira, who were once recruits of demon slayers. Our enemy wasn't around as long as the Curse Dragon.

Koan: (shocked) You know dung as well?

Ubuyashiki: Yes, he was an urban legend long ago, saying he unleashed his curse to give the people despair; they say he was the reason that he poisoned the man so this person would create more demons; he was one of Dung's successors.

Koan: Muzan Kibutsuji.

Ubuyashiki: Ah, so you know his name. Dung helped bring his creation to spread and even have some humans corrupted by his curse, only to darkness and pure evil in their hearts, pitch black as his soulless, which is why Hikar and Lilith get to work so much destroying Dung's creation and stopping allies so this world will have more lesser problems and gone. But they say show us a sign, a miracle of them getting married. I predicted a child they have, and that day the child ... which is you.

Koan is speechless about it.

Koan: Koan sees...I wish to see them, even what that bitch did.

Ubuyashiki: Young one, I feel you have been through so much pain that no human has ever survived from dung and told the tale.

Koan sighed and then sat down.

Koan: I used to have a lover named Jennifer, but he broke my heart, as everybody knows, and never said, laughed, and threw trash at me. Then she killed my stepfather and stepsister. She has taken me and that where dung and his allies with her...tormented me almost more than a year.

This shocked the Hashira to look at Koan's eyes, seeing

Koan: Pierce, poison, assaulted the worst way, rammed over, stabbed, cut, eaten, burned, frozen, infected illness, mauled, torn apart, melted, drowned, bled dried, bugs crawled inside me, losing air, buried alive, bones shattered like glass, beaten up, trauma, and haunted by nightmares of repeated death of my family who adopted me, and Jennifer kept laughing at me more. The list goes on and on that I survived, but treating me like a wild animal or a tool, then where I lost my sanity when Jennifer pushed me into a pit...my hair turned red, my eyes became yellow, and my fresh skin was a little lighter. Strapped my arms and put a cage on my head as I was filled to the brim in mind, body, and soul that all I do is smile and nonstop laugh, mutating me into this.

Koan then chuckled at that, and Naoko gripped her skirt at how much Koan had been through hell.

Koan: I thought to lose hope; I got mutated and looked like a demon, a monster to people who are afraid and hate, to attack. So I hid and helped in the shadows until one guy, who was a hero among heroes who saved this world from the great evil that exists, was a hero as a kid and then grew up. Thanks to his friends and family, my brother, who defeated me when I used to have amnesia, my enemies returned, and he gave me hope as family, friends, and lovers. So I learned and experienced from him; I served and protected, and I had no interest in fame, odoring, or anything at all. So I became the agent of Chaos! To stop and destroy corrupt orders!

Koan looks at his hand and tightens

Koan: Because that's what my family and friends want me to be happy, so I want everyone to smile and laugh.

Giyu: Seiryuami...

Misutri: Poor Koan, I'm happy he's at least not alone; I do want to hug him in comfort.

Himejima: (Tears like waterfalls) His soul was strong enough among his body to endure a monster's twisted joy.

Shinbou: to believe he is still smiling and laughing after all his life has been through.

Rengoku: His spirit burns bright to let hope! Even a smile against the fierce being there is!

Uzui: His style is unpredictable, which is not bad anyway.

Hibiku: I will make sure to aid him at all costs; no one deserves such pain.

Tokito: Hmm, protect a smile, huh?

Otone: Damn...

Shiniqua: Seirnuyami, what strength did you possess to endure this hell?

Ubuyashiki: (smile) You look exactly like your parents, so you want to become a demon slayer?

Koan: Yes, you and the people who have experience enduring, lost, suffering, and turana by muzan's even dung. I want to aid my fighting spirit, my claws as the natural predator of apex predators. I want this world to smile and have hopes! Even bloodlines passed from generation to generation to the future! Even if it costs me a limb, leg, body, or soul in order for this world to keep going until the end (turn at the Harsha), some of you experience the pain you endure, locked, and moving on isn't easy. Lost of family and friends, endure the cold world as it is... Cuz I'm not just a hero but a vigilante and anti-hero, Muzan sees himself as a calamity disaster of weather that pictures humans as pointless to win and defeat him...but we will prove him wrong no matter how many low- or high-rank demons there are! And those who become demons will not die in vain! Their spirit is still there and remembered because Koan will help his friends and family to bring a smile to this world!
Ubuyashiki and the Harsha are speechless at his determined speech, and he pulls out all of his honesty from his heart.

Koan: (grin and eye smile) because Koan is Koan! And I like root beer because peace is peace, peace is nice...peace is better than CHICKEN AND RICE! (Eye bulge out and tongue out in a goofy way.) AHAHAHAHAHAHAHA!

Ubuyashiki: (smiled) I see your personality is warped... but your heart remains pure.

Shinbou, Misturi, Rengoku, and Naoko chuckle at Koan's silliness.

Then the red samurai turns at the Hashira as he waves his right arm at them.

Koan: (turn at Giyu) yellow droopy! (turn at shinbou) yellow pretty butterfly! (turn at Otone) yellow cool snake girl, (turn at Shiniqua) yellow pretty wild cat! (turn at Himejima) yellow teddy! (turn at Hibiku) yellow drummer girl (turn at toiko) yellow cloudy! (turn at Rengoku) yellow sunny! (turn at uzui) yellow shiny! What are you all doing? Me am koan!

Ubuyashiki: You have a funny saying.

Giyu: Droopy?

Naoko snickered at Giyu, who called Droopy.

Shiniqua: Seirnuyami!

Koan turns at the female wind Hashira.

Koan: Yes, Shiniqua?

Shiniqua: I want you to fight me!

Koan: (tilt his head) Gero? Why?

Ubuyashiki: Do forgive Shiniqua; she wants to see how strong you are with a sword.

Koan then grinned as he laughed maniacally.

Koan: Interesting! Besides curiosity killing cats, such as myself, I do want to see how strong the Hashira are; I sense them as very strong. Who is able to fight and able to help their potential develop (turn at Ubuyashiki)? If it is okay with you, I'll accept her request.

Ubuyashiki: I would, but unfortunately, technically, you need to pass the Demon Slayer test. My apologies for bringing it up this late.

Koan is okay as long as Koan eats and kills demons, since 20 last night was good enough.

Shiniqua: WHAT?!

Uzui: YOU ATE 20?!

Shinbou: Is this true, Kanroji?

Misturi: Yes.

Hibiku: Haha, you're a pretty interesting person, Koan!

Rengoku: I agree!

Koan: But Koan must accept the master's rules here and respect them (turn at Shiniqua). Koan promises to fight you, and I know you're pretty badass, judging by the looks. You can handle demons before becoming a demon slayer. You're as awesome as I thought.

Shiniqua: (blush and look away) Grrr! Idiot, I don't need your damn compliment!

Ubuyashiki: Oh, there are 9 girls who seem to know you; they visit and tell me as they're waiting and perhaps are aware of your presence.

Koan: Oh, my girlfriends are here! Joy!

Ubuyashiki: Excuse me?

Koan: Let's say I wrote a letter to them about my situation, and there are my girlfriends.

Uzui: all 9 of them?! Woah, I only have 3.

Koan: And I sense them coming (got a tackle hug in a blurry speed) BURRITO HAT!

Koan sees who tackles him in a hug is a girl who has yellow eyes with thin slit-like irises, somewhat resembling those of a cat, and her wide mouth was also rather feline, as her canines were pointed and longer than the rest of her teeth, giving her a vampiric appearance. Her hair was a pale, ash-blonde color and was styled into two messy buns, with numerous wild strands sticking out, a straight fringe, and two chin-length side bangs framing her face. In a blue decorative flower design, a black and red obi, and white socks with sandals.

Koan: Yellow Himiko Toga!

Himiko: Hello, Koany~~~

Koan then sees coming is Ryuko wearing a senekutsu version kimono, but the bottom is a hakumen and white socks with sandals.

Tsume is wearing a purple yukata and a dark blue obi but still has her hoodie and attached sleeves, cat paws, and cat paw boots.

Emerald has a spring green color with decorative swamp color and a black obi, and black socks with sandals.

Mileena has a kunoichi outfit version of her outfit, a black sickle, and sandals.

a girl with long black hair and teal eyes who is also wearing a kunoichi outfit in yellow and blue, along with blue legging socks and sandals.
A woman with long, wild black hair has a Cheshire design nekomata mask, wearing a yuakta mixed kunoichi outfit with a green and black color theme, wearing black leggings and short heel sandals.

A slender yet athletically fit woman of curvaceous frame and average height. She has dark skin, golden irises, and black hair. Her hair is waist-length and kept in a ponytail with chin-length bangs framing the sides of her. She's wearing a dozen-color kimono with a purple and green obi, black leggings, and sandals.

a young Japanese woman in her adolescent years with a buxom figure. She has long black hair with a blue tint that extends all the way down to her hips, with several bangs hanging over her forehead and longer bangs that frame her face. She wears her hair in a long ponytail with a pink bow holding it in place, a dark red kimono with black lines and a pink obi, black legging socks, and sandals.

Koan: Hotdogs are yellow! Ubuyashiki and Hashira meet my girlfriend Himoko Toga, my childhood friend Ryuko Matoi, that cat girl who seems familiar that I don't know yet, Emerald Sustrai, and Laura Kinney. A.K.A. The Wolverine, A.K.A. Lady Wolverine. , Jade e Nguyen. A.K.A. Chesire, Yoruichi Shihōin, and my 2nd childhood friend, Himari Noihara.

Naoko: (shocked while looking at Ryuko and Himari) Ryuko? Ans is you, the girl named Himari who acts like a cat.

Ryuko: Huh? (Look closer) Naoko?

Naoko: (I smile and smile.) That's me!

Ryuko: Huh?! How?! I heard that you were in the hospital!

Naoko: Blame Dung, who dumped me here after telling me what he did to Koan.

Ryuko: That dragon is an asshole!

Himari: I see he's still as heartless as ever.

Mileena: As if he has a soul to begin.

Yoruichi: Anyway, we got your message and caught up on the situation.

She appeared in front of the Hashira, who was surprised to have never seen her speed.

Yoruichi: You guys remind me of my comrades back at my place.

Ubuyashiki: Ah, it is nice to meet you all. Anyway, you and your loved ones will take the test; surely the Hashira will assist, but keep watch on you, my Hashira, who will assist him in training and after he becomes a demon slayer. Along tour him around for training.

Misturi, Shinbou, Otone, Naoko, and Shiniqua are about to raise their hands to call out.

Hibiku: (Raised her hand fast) I will master!

She picked up Koan like a rag doll over her shoulder.

Koan: hotdogs!

Misturi: (pouted) No fair!

Shinbou: (giggle "sweetly") Oh my, to think I can talk to her later.

Oton, (scary aura) who does she think she is?

Shiniqua: (grind her teeth) That bitch!

Naoko: (Raising orange and black aura)...Hibiku, put down my childhood friend. I think I'm suitable for the task because I know him very well since we were kids.

Hibiku: And why should I?

Noako: (already a snatch koan) because I found him first last night! So I'm doing it!

Misturi: What was that!? (snatches him) I'm the one who actually found him!

Naoko: Well, I know him!

Misturi: You ran off without me during the mission!

Shiniqua: (snatch koan) Hey! Seirnuyami owes me a fight! I'll make sure to whip his hands—I mean, his ass—into shape! The sooner the better; I want to see what makes him so special! Now fuck off!

Otone: (snatch koan, then let Misturi hug him) I believe Kanroji has the fight; if it weren't for him, we wouldn't be in luck, so she and I will be the ones.

Misturi: Yeah!

But then Shinbou snatched Koan and then petted his head as he began to pour with his eyes closed.

Ubuyashiki: Everyone, calm yourself.

As everybody calms down

Ubuyashiki: We will let Koan decide, Koan?

Koan: (got out of Shinbou's hugs) Take turns as Koan let Misturi go first since she did find me, and Naoko is my childhood friend who I've been searching for.

Misturi and Naoko: YES!

Koan: Koan wants Hibiku with me, my lovers, and me to be teammates as the demon slayer's trump card. The Hashira can assist me once I compile the test. Each of them helps me train a Hashira right after the test. Misturi can help along with my team if she feels like it. I called my team the Alpha Demon Slayers. Once that's done, I'll help any recruits as possible.

Ubuyashiki: Very well then. I hereby announce that Koan and his team will be joining up with the Hashira once his test is completed. You must stop Muzan and Dung; surely you will teach the Hashira as well to get stronger than before.

Koan: You have my word.

Misturi: (blush and twiddle her fingers) So, uh, Koan, are you doing anything busy?

Koan: Well, not yet of my training, so no.

Misturi: Great!

Koan: If you are still hungry, Koan will cook a lot of big and yummy food!

Misturi: (heart eyes) YOU ARE THE ONE MORE! I'M SO LUCKY!

Ryujko: I will kill that pink sakuramochi bitch!

Shiniqua: Get in line.

Misutri: And don't worry, Koan, I know you'll pass the test for sure; everyone will be happy to get to know you and your girlfriends.

Koan: And I will teach you and everyone else! (Grin wider) If Dung and Mzuan want to bring his creation out there, if they think the Hashira are troubling...(grin more) wait till they get a load of me and my teammates!

time skip

Somewhere in the cave, Hinode is hiding from the sunlight; due to being a demon, she'll be burned easily to dust. She heard footsteps and was on guard. Coming to light is Koan's duplicate.

Hinode: Koan, hello.

Koan: Yellow Hinode, so did you manage to tell my offer to Yonaka?

Hinode: ...Can you really do it?

Koan: It depends; will you accept?

Hinode: I want to see the clouds; I want to see Blue Sky once more...the day that my parents and I used to watch together during the Sakura trees. If it means I'll get stronger in the day and then at night to fight the demons, then yes! I will accept it.

Koan: then come forward.

She was walking toward the red samurai; he bit his finger, showing blood, making her worried a little.

Koan: It's okay, trust me, open your mouth...with this drop, you can't be cured, but the system will customize it to match something similar to mine, a re-mutated one that brings particles of your humanity.

She nodded, and Hinode opened her mouth once Koan's blood dripped to her tongue. She felt a loud pulse as her eyes widened; she grunted. Falling on four legs felt like burning up inside, grunting and sweating, and then 10 seconds later she was catching her breath and getting up. She looks at herself, still feeling the demon still run through her veins, but different as in something reopening and bringing what part of her.

Hinode: Did it work?

Koan: Come outside and see for yourself.

She gulps a little; she is walking outside with him and closes her eyes, waiting for something to happen... then once she opens her eyes to see she is no longer burned alive, the only thing that happened when she first became a demon.

Hinode: (looked at her hands) I—I'm not burning. I...I can walk to daylight again.

Koan: (Smile and chuckle) Absolutely.

Hinode: How did you do that?

Koan: Since I ate the demon, I used the samples to research genetics, not of the current but at least I managed to make alters only for those who still have pure hearts, humanity, and memories of themselves still even as a demon, so I have it in my blood and drop it in your mouth, so now...you can finally walk to the sun again.

She then let tears drop down from her cheeks and then hugged him tight.

Hindou: Thank you, Koan! Thank you so very much! I am forever in your debt!

Koan: (laughing maniacally and petting her head) No problem, Koan doesn't like cute girls to feel sad.

This made her blush but she shook it off, then bowed her head.

Hindoe: I am for now your bodyguard and will be at your side to help, to slay any enemy that dares to come to you, rather! And for every innocent there is, in order to do that, I can finally earn the demon slayer's trust by entering the exam, which you'd be doing too, right?

Koan: Yes.

Hindoe: I hope that my secret of what I am, they'll be not sure about it.

Koan: No need, I told them mine, and they began trusting and saw me not as a monster, so I'll stand up for you.

Hindoe: (smile) Thank you, Master.

Koan: Uh, just Koan.

Hindoe: No, I said I am forever in your debt, so I repay you with loyalty because your pure soul helps me rise more hope than before.

Koan: Tell me, what breathing style do you do?

Hindoe: Moon Breathing, but I learn my own fire breathing, but thanks to my blood demon art, I can alter its intense heat and temperature to blue flames.

Koan: (grin) Well then, I wish you the best at the exam.