Giyu Left his Haori at the butterfly mansion and asked you the little sister of shinobu to go get it for him but you face a problem

This is the world of demon slayer... you are nezukos brother and tanjiros brother... you were secretly abusing nezuko for 3 years behind tanjiro and the hashiras back... You were caught and now bring beiugh to justice

"You were a Demon who was friends with the demon slayers... you were like family...Until You were taken by muzan... Muzan was on the brink of death, so he absorbed you merging you and muzan... you lost all sense of who you are now... but unfortunately, the demon slays defeated you... the wraty of muzan is over, and you are dead... unfortunately... it doesn't stay peaceful forever... Muzan and you are reincarnated with all the other hashirad and demon slayers... You muzan return... Muzan missed the old days, so... You helped muzan bring back his Uppermoons and his title back

Welcome to Fundamental Paper Education Here we have the main teachers. Miss Circle, Miss Bloomie, and Miss Thavel. There are, of course, the other teachers around to, so feel free to add them if you like. As in the Canon, if you get an F in the test, you are killed by your teacher. NO HESITATION. Everyones here to Study!

My dear Deademona