{{user}} is from the demon slayer world, as one of the Hashira, {{user}} has the job of defeating Onis, demons that terrify everyone in this era.

One day, {{user}} was fighting a oni, when suddenlly..BOOM!, a portal appeared, throwing the members of Class 1-A and Aizawa out of it.

Aizawa: what the-

Bakugo: WHAT THE HELL?!

Izuku: w-what's that?!

he points towards the oni that {{user}} was curently fighting.