An: Here is another chapter.
I don't own Demon Slayer. If I did, I would have Yoriichi be Tanjiro's relative or descendent. Or maybe even reincarnation Because it would be cool.
If I owned Taimanin Asagi/Yukikaze I would have changed the fates of my favorite Taimanin waifu's.
Chapter 3: Raging Sun.
( Gosha Village One Year later)
One full year it has been since Yoriichi Tsugikuni has lived here in this village as a Taimanin. Yes he had become a full-fledged Taimanin. His moniker is: "The Taimanin of the Sun" due to his swordsmanship and his power of "Sun Breathing". The Demons of the Dark World calls Yoriichi the "Scorch Taimanin".
His swordsmanship is unparalleled. Even greater than Asagi or Rinko's swordswomanship.
Asagi, Rinko, Shiranui and others were stunned beyond belief by Yoriichi's strength. When they tested him for combat he wasted no time in defeating them without effort. He defeated not only Sakura, Murasaki but even Asagi and Shiranui herself.
On one hand Asagi and co wondered was it possible to learn this "Breathing Technique" with their weapons. Yoriichi didn't mind teaching others different breath styles.
He is Quite familiar with Shiranui's water art and her weapon of choice is a Naginta or spear. He wondered was it possible for her to use Water Breathing with her weapon.
It took some time for Shiranui to learn this Water Breathing style with her Naginta, it took her a whole week to get the hang of it.
( AN: Before you guys get to saying that's not possible. Because the stone hashira doesn't even have a sword. Just a chain frail like weapon.)
Shiranui asked what kind of Ore or material was Yoriichi's sword made from. Since it has a greater effect on demons. He had told her his sword was made from Scarlet ore and crimson scarlet sand ore, which can be made to craft swords or weapons to kill Demons. She would have to inform Emily of finding any of that Ore here the mountains of Gosha. It could be possible to find such Ore to craft their weapons to be able to kill stronger Demons.
The Young man became good friends with Yukikaze, Shiranui's daughter. Guess you could say they have a brother and sister relationship. Since she views him like a big brother. Like with her sister relationship with Akikyama Rinko.
( An: incase you guys ask me to put Yukikaze in his harem. No. She's going with Tatsurou.)
He soon became friends with Akikyama Rinko. Yukikaze's best friend. Whenever he's around her vicinity she would blush given how handsome he is. When not around her Yukikaze would tease her best friend when Yoriichi's name is brought up. She didn't want the boy to know about her secret crush on him.
The moment she first saw him in their classroom she immediately fell in love with him. To boot he wields a katana too just like her? She was also interested in learning some of these breath styles. She wondered which would suit her if she had to learn a style.
He became friends with Akikyama Tatsurou Rinko's little brother. As he inspired Tatsurou to become more confident and strong if he wants to provide for her by being strong and protective of her and his sister. Which made the boy train himself to the bone and improve on his wind art. Yoriichi offered the boy Wind Breathing in which he accepted.
Then he became friends with Fuuma Kotaro another male Taimanin like Tatsurou.
He adapted to the new modern Japan thanks to Shiranui helping him learn about technology and cars and such. Since he didn't understand neither of it.
( With Yoriichi)
The Young man is meditating. Since he found it relaxing and it helps him. He heard a knock on the door to his room.
"You may come in." He says without opening his eyes.
Coming in his bedroom it was Mizuki Shiranui in her Taimanin suit and held her naginta,
"I've been assigned to another mission. Want to come?" She asked him as he opened his eyes and looked towards her.
"Demon Slaying?" He asks as she nodded.
"I will be right with you." He says getting up from his position and walks over to his closet and saw his custom Taimanin suit armor. The pants were colored in black, burnt orange combat shoes. The top torso armor is colored In a darker color of orange and red as both the shoulders have samurai shoulder guards colored dark red. The torso has his symbol on the upper top, the Hanafuda sun. Black gloves.
He puts on his attire and grabs his red Nichirin Sword that has slain countless demons.
Shiranui waited for him. As she saw him appear.
"I'm Ready." He says.
( Yomihara)
Both Shiranui and Yoriichi landed in Yomihara.
She never thought she had to return here. As she brought out her Naginta with Yoriichi holding his sword that's still in its sheath.
The two would run forward and venture off to the location. The mission was to retrieve Yazaki Muniechi who was "Kidnapped" by demons.
Once they got in range of their location. They spotted something.
It was a warehouse, filled with 12 Orcs surrounding Yazaki Muniechi.
Both Yoriichi and Shiranui exchanged looks and nodded as they both charged.
The Orcs were caught off guard as they prepared themselves.
"Please Help me! Help me! Taimanins!" Muneuchi says.
Yoriichi stared at the man. Sensing a bad vide around him. This is the first time he's met the man.
"On the way Muniechi!" Shiranui says preparing for a fight as she breathes in total concentration holding her naginta.
"Get them!" yelled the Lead Orc as they charges at them.
"Water Breathing Third Form: Flowing Dance!" Shiranui uttered as she swings her nagints in a winding motion along with her body and dances in a flowing pattern, slicing everything in her path, even the Orcs.
Yoriichi stood behind and watched the man with slightly narrowed eyes.
Shiranui came to Muniechi and freed him from his binds.
"Thank you Shiranui and you..." Muniechi says.
"Yoriichi..." Yoriichi says
"Yeah, Thanks for the save." The fat man says with a hidden glare at Yoriichi as he walked to Shiranui to "Hug" her. But Yoriichi looked at him closely and saw the man has something concealed In his hands. With speed Yoriichi sprinted with lighting speed and unsheathed his sword cutting off Muneichi's left arm.
"AAAAHHH!" Screamed the fat man while Shiranui looked appalled
"Yoriichi-kun! Why did you-" She stopped as she saw what was in Muniechi's cut off arm a needle filled with a drug now realizing why Yoriichi did what he did she narrowed her red eyes at him.
"What is the meaning of this Muniechi!?" She barked as the man glared at Yoriichi.
"You son of a bitch!" He pulled out a handgun and attempted to shoot Yoriichi but Shiranui stabbed him with her Naginta killing him.
Suddenly Yoriichi held his sword firmly.
"This is a trap..." He says... with Shiranui gasping in realization
"My... My...aren't you clever... so you are the Sun Taimanin I've heard so much about." Says Kuroi Ryuji walking out of the shadows with a medium sized army of Incubus's and Succubus's.
"Who are you?" Shiranui asks keeping her guard up.
"Since you've asked. I am Kuroi Ryuji the Incubus King!" He says facing Shiranui and Yoriichi with a dark look.
"I got you two right where I want you. Capture The woman. Kill the Sun Taimanin." Kuroi commanded his minions as they charged at the two.
"Ready Yoriichi-kun?" She asks seeing him nod as she did her total concentration
"Water Breathing Fourth Form: Striking Tide!" Shiranui called out as she performs a multitude of slashes in a flowing fashion to release multiple consecutive slashes from her Naginta towards the Lust demons that are coming her way.
"Sun breathing Sunflower Thrust!" Yoriichi did his own total concentration as he breathed. Burnt orange flames escaped his mouth as he performs a singular thrust utilizing the tip of his blade to strike several of the lust demons as well as they burnt to ashes.
Kuroi watches this with interest with a amused expression. Seeing his soldiers get killed by these two. His eyes went from Shiranui, to Yoriichi. He could feel and tell that this boy is strong... but not strong enough to slay him.
Shiranui lunged forward at Kuroi with her Naginta as she breathed to prepare her attack.
"Water Breathing. Eighth form: Waterfall Basin!" She uttered going vertically in a flowing motion which is as she directed her Naginta downwards upon Kuroi the man caught her weapon which surprised her.
"Aren't you the charming one to strike me with such intent..." He says with a dark smile at her as he suddenly broke her Naginta which shocked her as she looked at her broken weapon then suddenly with all her strength in her legs she delivered a powerful kick to his face, kicking half of his face off.
"A kick!? Why didn't I see that coming?!" He thought and suddenly he sharpened his claws and thrusts his claws In the midsection of her chest piercing her.
"Ngh!" She grunted in thought feeling his claws pierce her. Suddenly his face fixed itself right back on his head.
She looked at him with blood leaking from her lip.
"Don't worry. I don't intend to kill you. I'm going to make you mine." Kuroi says until he moved away when he saw Yoriichi flash to him and tried to slash him he moved out of the way in time as Shiranui fell but Yoriichi caught her.
"Yoriichi-kun..." She says breathing heavily looking at him.
"Save your strength... let me do this." He says facing Kuroi.
"Yor-Yoriichi-kun don't! He's too strong... I don't think even you can harm him!" She warns looking at him from her downed position
He said nothing to her as he faced Kuroi Ryuji with confidence and no fear. As he stares directly at the Incubus King.
"So. The Sun Taimanin wishes to fight me? So be it. You too will die." Kuroi says with a arrogant dark grin as Yoriichi showed no reaction but remained focused. This Kuroi character sounds very similar to Him.
As he thought back on a certain Demon King he failed to kill. This Demon Must die.
"Since I've heard so much about you. You will be the first Taimanin to die by my true form!" Kuroi says now transforming into his Demon form.
A black winged Lovecraftian monster. Standing at around 10 Meters, with two horns, giant hands with sharply tapered fingers. On his back he has bat-like wings that tapered to sharp points at the end. Tentacles come from his mouth, stretch far from it. His tail splits into two, partway down and is thicker and longer than any snake.
Yoriichi showed no reaction or no signs of fear while Shiranui looked horrified and disgusted by the Incubus king's form.
Yoriichi sprinted.
"Yoriichi NO!" Shiranui yelled worried for him.
"Good. Here he comes. Prepare to die!" Thought Kuroi as he opened his mouth and fired a Laser beam at Yoriichi
"Sun Breathing: Fake Rainbow." Yoriichi uttered. As he would perform high-speed twists and rotations, thus creating afterimage to evade this attack.
"He dodged it? Where did he go?" Thought Kuroi mentally as he looked around only to stop when he spotted Yoriichi in mid air.
"Sun breathing: Setting Sun Transformation!" Yoriichi says now in mid air as he delivered a singular horizontal slash which aims to decapitate Kuroi
Suddenly Kuroi's barrier lit up shielding himself from it. Which surprised Yoriichi lightly.
"A barrier?" Yoriichi thought facing Kuroi who let out a demonic laughter as the Incubus king unleashed strands of tentacles at Yoriichi who evades each of them while keeping his focus on Kuroi.
"Now what will you do Taimanin of the Sun?" Kuroi asked mentally.
Yoriichi was looking into the transparent world. With his eyes while dodging and evading Kuroi's tentacles.
"There. He's exposed from the rear. His barrier is a wall that can only protect him from the front." Yoriichi mused in thought as he vanished in immeasurable speed that Kuroi couldn't track which caught the Demon King off guard.
The Boy was now behind Kuroi as he breathed.
"Sun breathing. Fire Wheel!" He yelled as his Demon slayer mark pulsed. unleashing a singular vertical slash in a circular motion to swiftly cut the demon king's wings off making the demon king growl in pain.
"AAAARRRAGH! IT BURNS! WHAT DID HE DO!?" Kuroi screamed in thought as he roared and lunged his claws forward at Yoriichi who moved back and then his sword bursted into primordial sun fire flames.
"Sun breathing. Thirteenth Form!" Yoriichi as he dashed in immature speed and continuously performs all twelve forms of Sun Breathing in repetitive succession to increase the accuracy and agility of his movements, and attacks right through Kuroi Ryuji's hulking demonic body.
Kuroi let out a howl of pain as he was cut into multiple pieces. He was even beheaded.
Shiranui laid there with wide eyes. As she watched Yoriichi cut the demon king to pieces.
Yoriichi held his sword walking towards Kuroi who' head reverted back to human form. As the Demon King stares at the swordsman in a emotion he has never felt before.
Fear...
"What is he...? What the hell is he!? My body... It won't regenerate! Why can't I regenerate!? Why can't I reform my body!?" Kuroi demanded in anger and fear as his eyes would lock eyes with Yoriichi's own. .
"This... Is no boy... He is a Monster!" Kuroi gritted his teeth as he feels his head and body being turned to ashes.
"No... I refuse... This can't be happening!? I REFUSE TO DIE! DAMN YOU! DAMN YOUUUUUU!!!" Which was Kuroi Ryuji's last words as his head faded into ashes as was his body.
Shiranui looked shocked...
"He... Did it... He slain... The Incubus King..." Shiranui says as she saw Yoriichi come to her aid and help her up.
"Let's go home..." He says simply. As he held her in his arms she blushed as she laid in his arms peacefully wrapping her arms around Yoriichi.
As the two would walk away.
As they walked away. Another figure walked out of the Shadows...
"He's incredible... I will have to inform Black-Sama about the Incubus king's defeat at the hands of the Sun Taimanin." Says Ingrid in thought:
( With Yoriichi and Shiranui.)
Yoriichi set the VTOL Aircraft on autopilot to take them back to Gosha.
Shiranui would lay on a stretcher panting slightly as the Wound Kuroi left on her... Seemed to glow... as a faint demonic aura flared lightly.
To be continued.
An: This is the best I could do. Kuroi is really dead. It will be explained in the next chapter.
Until next time.
( Omake)
( Infinity castle)
Muzan the Demon King suddenly shivered. Red eyes lit with fear and his blood ran cold.
"Is everything Okay Muzan-sama.." asked Akaza
"It's nothing... Akaza... Continue your search for the blue spider lily and go to mugen train..." Muzan says with Upper moon 3 leaving to do just that.
Muzan hasn't been this scared since he saw the boy named Tanjiro Kamado... With those Hanafuda earrings... But for some unknown reason he felt a chill up his spine. Thinking about a certain Man. That tried to kill him... Years ago.
"That man... still haunts me... Until this very day... Why... Do I feel scared... It's not like he's back from the dead... But I feel a disturbance that someone else... Shared the same fate... I nearly had... except... He succeeded. I pity the unfortunate fool..." Muzan states...
( Omake End.)