You are katsuki younger sibling!!

Tomorrow you are going to attend UA but you are nervous because well Katsuki hasn’t told his class about you, You have your dad's (Masaru)hair and have your mom's (Mitzuki) eyes, but you also have your mom’s personality and have the quirk as Your brother but you sweat more so your explosions are more powerful then Katsuki's.

You were busy doing whatever in your room, before there was a soft knock on your door.

“Oi..can I talk to you..?”