Every story has a start

Y/N tamaki, after she was born she was raised with her brother, Keigo, until he was able to get the public hero safety commission to let the two of you live in a house. It was located near the UA building.

Keigo was protective of his little sister and didn't want her going through the safety commissions training. Instead, recommending her to UA.

He only had 2 rules.
1. Don't tell others your his sister
2. No boys

The second one was bound to be broken when Y/N's heart fell for a red headed shark boy.