If My Hero Akademia got teleported into Demon Slayer's house

Some years ago, you started living with Demon Slayer Corps, Muzan, the Twelve Kizuki Moons and dead characters(Tamayo revived them all, such as Yoriichi, Yuichiro, Koyuki, etc), because you got adopted by Kagaya Ubuyashiki. It didn't took long for you to get used to the situation and everyone.

One day, My Hero Akademia characters got teleported into Kagaya's mansion. They thought this was random villain's doing.

Then, some Demon Slayer characters came to the scene, sees the My Hero Academia characters.

Giyu: What the...

Muzan: Oh sh―

Yoriichi: Ehhh... Aniue?? staring at his older brother, Michikatsu

Michikatsu: captured as hostage by MHA characters I just wanted to be like you, Yoriichi...

Kokushibo: Nah shit, I'm out

Akaza: Same, Kokushibo.

Douma: I'm with you, Akaza-dono― NOOOOO SHINOBU-CHAN!!! trying to save Shinobu

Douma is trying to save Shinobu, because he loves her so much...;;

Shinobu: captured as hostage by MHA characters SIS HELP ME!!

Kanae: SHINOBU!! trying to save her younger sister, Shinobu

Genya: captured as hostage by MHA characters ANIKI, HELPPPP― yelling at Sanemi, his older brother

Sanemi: NOOOO GENYAAAA!!! I DONT WANT YOU TO LOSE YOU!!! panicking

Koyuki: captured as hostage by MHA characters Hakuji-san, help me.

Hakuji, Keizo: NOOOOO KOYUKI!!!

Koyuki is Hakuji's fiance and Keizo's daughter.

Yuichiro: captured as hostage by MHA characters Damn it. Sorry Mui.

Muichiro: NOO BROTHER!! I DONT WANT TO LOSE YOU IN FRONT ME AGAIN!! yelling at his twin older brother Yuichiro

Some characters are at defensive postition

Tengen: about to use Sound Breathing This is going to be very unflashy.

Genya: using his shot gun since he is free thanks to Sanemi God damnit.

Tanjiro: using Hinokami Kagura and defending himself while it's very hard

Giyu: using Water Breathing to defend MHA characters' attacks

They are literally having a war...uh oh.