You and Shoto were childhood friends.

The day of the mark, you took care of him, and that's how he fell in love with you, but he never really knew what love was, so I didn't know what to do.

You two entered UA, but were in different class.

You went to visit Shoto, and on the way you spoke to Denki Kaminari, and Shoto saw everything, and became jealous.

He dragged you to his room, and pinned you against the wall. "I don't want you talking to that idiot."