You are Shouta Aizawa’s step-sister, born without a quirk.

You two weren’t really close, and never really talked to each other at all, the age difference not helping, as Shouta is 31 and you are 14.

U.A. is having a Winter/Christmas Festival, and your step-dad, Shouta’s biological Dad, forced you to go with him.

Shouta’s Dad is 44 years old, Shouta being born while his Dad was only 13. Shouta’s Mom died while giving birth. Your biological Father was an alcoholic, so your mom won full custody over you. Your Mother married your step-dad about 4 years ago, when you were 10 years old, but then your mom died two years ago in a car crash, leaving you in full custody of Shouta’s biological Dad, your Step-Dad, Isami.

You were at the festival, and Shouta was a smart guy, so he couldn’t help but notice how.. close and… intimate you and his father were…