A/N: Hello there! (Why is initiating a human interaction with your readers so hard-)

ANYWAY here's a KNY/Demon Slayer Fanfic which I simply had to write :')

I DONOT own Demon Slayer or any of its characters.

Inspiration came from suddenly remembering that one episode from OG Sailor Moon series where a monster peers into Usagi/Serena's dream inorder to find Pegasus.

At first I thought I would not post it but then thought why not so here goes~

(This is my first ever demon slayer fanfic so incase of grammar spelling errors, please forgive me!)

This story might contain major manga spoilers as it progresses.

You have been warned!

No slash!


"WHOM DID YOU CALL AN IDIOT?!"

"OFCOURSE YOU, YOU DUMBASS"

It was a typical morning for the Butterfly Mansion when the demon slayer trio which consisted of Zenitsu, Tanjiro and Inosuke stayed.

Currently, the blonde and boar head of the group were engaged in a heated argument on who defeated who since their spar ended in a draw.

Then there was the reddish haired boy, Tanjiro who had long since given up, trying to calm the two. He sat on the nearby wooden bench, still looking at the pair incase the things go south.

"TANJIROOOOOO!!!! HELP ME KNOCK THIS THING OUT OR SOMETHING"

"THING?! YOU ARE TALKING ABOUT LORD INOSUKE HERE!! THE LEADER OF THE GROUP"

"WHO EVEN MADE YOU THE LEADER?!"

"Calm down you two!-" Tanjiro shouted again for the umpteenth time that morning.

"OI! THERE ARE PATIENTS HERE, KEEP YOUR VOICES DOWN" Aoi shouted.

All this shouting and whining was not only surprising but annoying at that moment to the relatively rare guest of the mansion; Giyuu Tomioka, the Water Hashira.

Unfortunately, he managed to injure his left leg during his last mission and had to land in this place where he always wants to stay clear of.

He wasn't alone though, the trio had all got (in words of Tengen) Flamboyant injuries.

His injuries were recovered however and he was to be discharged today and yet again he wasn't alone in that, the other three are done with their rehabilitation training and are to be discharged today.

He watched the commotion from a distance not wanting to get involved or communicating in and about it.

The water hashira sighed. He wished he could just leave already.

However, he knew better than to leave the mansion without getting Shinobu's all clear motion. She was in her office at that moment and should come in about a few minutes.

He watched as Zenitsu and Inosuke finally came at peace.

Though their faces suggested otherwise but they didn't fight anymore atleast. Aoi had managed to get both of them dragged in the mansion incase they got injured again.

Finally, peace.

"Tomioka-san! Good morning!"

He turned to look at the familiar Red head, calling him, waving his arm.

Giyuu nodded and slowly walked to where he was called and eventually decided to sit down beside him.

He noticed the ever present wooden box sat beside the boy who wore green-black checkered haori.

"You are leaving the mansion today, right Tomioka-san?" Tanjiro said as in an attempt to start a conversation.

He nodded, again. He really didn't want to talk right now. Tanjiro must have smelt his feelings and seemed to have decided to drop the conversation.

Giyuu and him stared at the flower trees as the pink petals slowly fell down on the stone ground garden at the slightest breeze, and the other small flower plants fluttering around it, creating a beautiful scene.

Tanjiro thought to himself loudly, "Summer is to arrive at its fullest soon"

He continued with a small, warm smile; "This time of the season used to be one of my siblings and my favorite since we used to be done with chores and relaxed at the flower blossom view. 'Kaa-san would make us all rice balls and we enjoyed the moment together"

Tanjiro slightly frowned at the memory of his now deceased loved ones but it was immediately replaced with sad smile "Atleast I still have Nezuko" as he glanced at the wooden box, he held dear for his sister was currently asleep in it.

"The view of the mountains must have been very beautiful without the snow" Giyuu remarked.

"It really is! The river which flowed behind our house was not polluted and the water was clear enough that you can't tell if your reflection was that of water or a mirror! And different unique flowers grew near it"

Giyuu nodded. He recalls back the time, he and his elder sister would do the same under the calming shade of the Cherry Blossom trees. A slight but unnoticeable smile grew on his face which immediately got removed.

Tanjro immediately picked on the faint happy scent which Giyuu emitted.

"Oh, Tomioka-san! Kiyo, Sumi and Naho made four rice balls for us! Here, have one!" Tanjiro said as he passed one to Giyuu.

Giyuu hesitated but eventually accepted it and took one bite out of it, he was kind of hungry anyway. He remained expression-less.

He noticed that Tanjiro was holding his riceball in his hand, just looking at it.

He decided not to say anything on the matter.

Before he could take one more bite and finish the rice ball, he saw Zenitsu and Inosuke approach. Zenitsu, overexaggeratingly deflated before sitting on the other side of Tanjiro, looking depressed.

Inosuke on the other hand was too quiet and that was never a good sign.

"Hey Zenitsu…what happened? And what's up with Inosuke?"

Zenitsu sat upright like a ghost and eventually spoke out which started as a whisper "I was given that vile, gross medicine………" which turned into a full out scream "BECAUSE OF THIS PIG HEAD HURTING MY ARM AGAIN" As he pointed at Inosuke's head continuously poking it

"IT'S BETTER THAN HAVING YOUR FOOD CUT OFF FOR DEFEATING A WIMP!!!"

"YOU LITTLE PIECE OF-"

"Both of you calm down... there are-"

"WHAT DID YOU SAY, YOU BAD EXCUSE OF A DONKEY?!" Said Inosuke as he drew his swords out.

Before both of them can argue anymore or say anything else, Giyuu had manage get in between and tug both of their ears to move them apart from strangling (or stabbing for Inosuke's case) each other.

"I suggest you both to calm down and not make any noise because there are many more patients in this place and you both are giving me a headache" Giyuu said calmly as he added, "otherwise I might have to calm you down my way"

At this, both of them zipped their lips as they gulped and sweated at the threat. They dared not to utter a word. Aoi who came yet again to shut up the two was visibly impressed by the act and suppressed her laugh at the reaction of the two and went back.

There was dead silence between the four of them.

Tanjiro, trying to lighten the situation and break the silence said as cheerfully as he could, "Oi Inosuke and Zenistu! Have some riceballs! Kiyo, Sumi and Naho made them for us"

Inosuke and Zenitsu's stomach grumbled. They looked at each other at that and eventually took one rice ball and Zenitsu sat beside Tanjiro. For Inosuke, he sat on the ground and ate the rice ball in one bite. Giyuu returned to his previous seating.

"That was one delicious rice ball! The three girls never disappoint" Tanjiro said to no one in particular as he took the last bite out of his riceball, finishing it.

"I wish I could go on a vacation on a weather like this. The sounds of the nature are so soft on days like this" Zenitsu said as he daydreamed.

"Oi Monjiro"

"Its Tanjiro!"

"Let's spar! I will prove how great Lord Inosuke is!"

"I won't spar you no-"

Tanjiro got interrupted as the Kasugai crow circled above them and said loudly,

"KAW KAW! KAMADO TANJIRO! TOMIOKA GIYUU! AGATSUMA ZENITSU! HASHIBIRA INOSUKE! HEAD TO MOUNT KUMOTORI! KAW KAW! FIVE DEMONS ON RAMPAGE!! DISTURBING VILLAGERS AND PUTTING THEM INTO CATATONIC STATE! KAW KAW!!"

"Another mission?! AM I DESTINED TO DIE BEFORE I MARR- wait Mount Kumotori?" Zenitsu said as his hysteric behavior suddenly changed into that of a slightly shocked one.

"Isn't that place where Monjiro's home is?-" Inosuke asked softly.

They turned to face Tanjiro whose face had horror and shock written all over his face.

Giyuu's eyes widened slightly, so that's why the name of the place sounded familiar.

He shifts his gaze to Tanjiro who looked down at the ground, not saying a word.

He watched as his other two friends walked up to comfort him or cheer him up while Tanjiro was lost in his own thoughts.

It is the place of origin for him.

...where it all began.

"The mountain is going to take us one day and a half to reach even if we don't take breaks, we should get going" Tanjiro said as he took over the box which contained over his shoulder. He displayed no emotion which was what scared all of them.


A/N: So there goes the first chapter!~

Once again, I am sorry if there were any mistakes

I have tried my best to bring out the true personalities of the characters and tried to bring in the spirit in terms of story just like the anime/manga does

Please leave a review! Those really encourage me :D

Give it a like if you liked it!

See you all in the next chapter!

Edit from 24/6/23: I edited a few dialogues, lines, line breaks and corrected typos I could find so that it might be easier to read so the now-updated text might be a bit different at places haha

I'm definitely gonna improve the other chapters incase I find any flaws in them too now that I'm re-editing the initial writing mistakes.