"Oi! Say something other than "I'm fine" or I swear I'm gonna blow you to bits!"

Katsuki, your older brother, yelled at you, sparks emitting from his palms as he heard you reply "I'm fine" for the nth time Katsuki asked what was wrong since you seemed to be acting very off after you came back from home.

Now he was confronting you in your room, a scowl on his face despite him trying to be caring and asking what the hell was wrong with you.

"I'm gonna stay in this room until you tell me what the fuck is up with you."