Male OC X Kimetsu No Yaiba / Demon Slayer

Meanwhile...

No one's POV

"Geez... Yoru's anger really gives you quite a shock." Lord Lucky said while keep patting Kurama's head.

"Lucky-san! That's not fair! We got scared too!" Shukaku clearly irritated that Kurama is the only one that got patted on the head.

It's no use if she summons a Titan. They're too dumb to even speak proper words. Shadow arms won't work because they can suck your life energy once came into contact with it. Hmm... what should we do?

*PING!* A light bulb pops out of nowhere.

"That's it! Hey! I have a solution!"

"What is it?" Gyukki asks. Lord Lucky smirked and told them the plan, which every one of them agrees to.

(Back to the KNY world)

"Hmm... if I buy the Dango now, it might get cold when he woke up. But... I promised it will be the first thing he saw when he's awake! Aaaaah! What should I do?! I can't decide!" Katsuki plops down onto his bean bag, frustrated. "But... he'll still eat it even if it gets cold... NO! That's not the proper way to treat Oreki!" He stares at the wall as if it's his enemy.

*CRASH!*

"What was that? It came from... *Gasp!* Oreki's room!" Katsuki ran towards the room only to see one figure standing. Behind the figure is a broken door.

"O-Oreki? Are you hurt? Is there something wrong?" Katsuki doesn't sense another human nor other demon presence. There are just the two of them inside this house. However, the scent that came from Oreki is off balance.

"Yo! Sorry for the late introduction. I'm not Oreki-san or Yoru-san! I'm Shukaku! Nice to meet 'ya pal." The 'Oreki' in front of him now has one brown tail with dark blue designs. His eyes have yellow irises and black sclera. He also has dark blue ears above his head.

Katsuki's whole world paused. In his mind, he tries to remember how Naruto wakes Gaara from Shukaku's control. He holds back because he doesn't want to hurt Oreki.

"He's busy right now. He will be back, I don't know when. But hey! He's strong! Don't 'ya worry!" He gave me a thumbs up and smiled..... Yes, He smiled. Using Oreki's face.

Realizing what just happened, Katsuki feels extremely excited all of the sudden. "Did... did you just smile?!!" He points at Shukaku with trembling hands.

"Huh? That's a weird question but I'll let it slide since this is our first meeting. Oh yeah, the other beasts will come after. Don't 'ya be alarmed! We just want to calm ourselves down by visiting this realm. The sudden emotion burst earlier scared us." He lowers his ears and tails. Sighing.

In Katsuki's eyes... Oreki. Is. Cute!

He grabs 'Oreki' into a hug and ruffles his hair. "Nani?! Hey! What 'cha doing?!" Katsuki clearly didn't hear any of it. His eyes were sparkling.

"Ne!~ You're so cute Oreki~"

"I'm not Oreki-san!"

"Ahahahaha~" Katsuki then had an idea. What if...

He scratched Shukaku below his jaw. Shukaku widens his eyes. There's a moment of pause before he closed his eyes again and lower his head."Length..." His tail got straight and his ears perked up. He seems to enjoy it. A small smile instantly formed.

Just then, reality srikes Katsuki. Shukaku is using Oreki's body. Treating him like this is... beyond his imagination! He never expected this day would come. Now that the matter had been mentioned in his thought, he feels embarrassed. VERY EMBARRASSED.

"Hmm? Oi! Why does 'ya face on fire?" Shukaku frowns when Katsuki stopped. He then noticed that Katsuki's face is unusually red but he shrugged it off, claiming that he still has little knowledge of other beings. "Do that again, will 'ya? Lucky-san can't pat us all at once! Please..." Shukaku lowers his ears and makes that cute sad 'puppy face'.

A fact about Katsuki, he's EXTREMELY obsessed with Oreki. This situation only makes his sanity almost slipped from his grip.

"Sure!~" He managed to make a calm face despite the storm going on inside him. "But~ Let's go to a more comfortable place~ I have two bean bags."

"Bean bags? Is that food?"

"No no no~ Let's go there to see it for ourselves~" Katsuki has a habit of dragging Oreki whenever he feels like it. Doing this will keep his sanity intact... somehow...

Shukaku pokes the bean bag. "So... 'ya telling me that THIS... is a bean bag?" He sniffed it. "It doesn't smell like food."

"Of course it's not food. It's something you sit on. Like this." Katsuki sits onto his bean bag with a smile. "It's comfy!" Instead of using the other bean bag, Shukaku lays down onto... uh... Katsuki's lap. "Huh?" Katsuki is bewildered by this.

"What? I asked 'ya to pat my head. Lucky-san asked 'ya a favor to help us out." Shukaku said it as a matter of fact.

"O-oh... okay. Why not?" Katsuki continues to keep patting Shukaku's head and scratch his lower jaw. While Shukaku closed his eyes, Katsuki's face is steaming hot by the new level up of his embarrassment. 'Oreki is cute. I'll keep him forever. He's my treasure. Anyone that tries to hurt him will perish.' Katsuki's emotion is comparable to roller-coaster. Embarrassed, then obsessed, and then it keeps changing one after another. That only applies to something involving Oreki. Before he's a very cold demon and mostly only shows his hatred most of the time.

"Thanks! If 'ya didn't do this, I was thinking of killing someone." Being a demon, killing someone can be considered as 'normal'. So Katsuki isn't taken aback by Shukaku's words. Rather than letting the bijuu go on a rampage, he will choose to pat him since... ah... you know... the owner of the body is Oreki after all.

"Hold on, you said that the OTHERS will come after?"

"Huh? Yeah. After me, it's Matatabi's turn. Then Isobu, Son Goku, Kokuou, Saiken, Choumei, Gyukki and Kurama. The red ape would choose to fight someone. That insect is kinda loud these days. That orange fox wanted to 'explore' this realm a bit so don't leave them from 'ya sight."

"Okay~ Thank you for the advice!~" What everyone else didn't know, Katsuki has the upper hand in handling these beasts. Especially how to tame a fox. He's looking forward to meeting the other tailed beasts... which means another different version of Oreki. "What a nice day~" He smiled. He's imagining himself in a place with lots of white fluffy clouds. "I'm in heaven~"

[This chapter is posted on the same day as the previous one. I separated this chapter because I don't want to ruin the mood I had set for the cliffhanger. Katsuki is still alive in case that you're confused.]