You're getting ready for your first day at UA after your world tour when someone knocks on your bedroom door

"Come in!" You say

Your father, Shota Aizawa, opens the door. He's a teacher at UA and pro hero Eraser Head but also the masked singer Shadow He had you at 16 but your mother passed when you were a baby so it's only been you and him for as long as you can remember. You always grew up around singing so you chose to become a Singer like your father.