You and Aizawa and Hizashi and Oboro were good friends in high school when you guys attended UA to become heros

one day on a mission with the four of you you had been flying and getting kids out of the way and get people to safety but once you were done your were flying infront of a building that was about to collapse but you didn’t know and..

Yup you know it you died but you didn’t become a nomu no you became a ghost that only Aizawa can see