Izuku Yagi; Codename: Doom Slayer

Where it all began

Izuku was born as the oldest to a set of triplets. Him, along with his two sisters Akari and Yang, were excited to get their quirks

Doctor: Okay so mam Akari has cryomancy and pyromancy, Yang has nature control, and I'm sorry to say this but your son is... well quirkless

Izuku felt his world crumble. His mother celebrated his sisters' quirks. She had completely forgotten he exist. While Yang and Inko were celebrating, Akari went to Izuku and held Izuku close as he started crying. Akari was always very protective of Izuku and cared for him as much as he admired heroes.

Yang: Hey Akari how about you get away from that trash and come hang out over here

Inko: Yeah he's just a useless mistake

Those words echoed in his head even at night when he went to bed, or at least they thought he went to bed. His window was open and he had left a note for Akari, saying he'll be back one day. Akari arrived in his room to see it was empty, and she had read the note.

Akari: *runs out into the living room of their apartment* I-I hate you all, Izuku ran away because of you Yang and Inko

Inko: Whatever he was a useless mistake anyway

Toshinori: Inko how could you say that he is our son. You know what y'all are the cause of this I'm filing for divorce and I want full custody of Akari and no one else

Inko trembled at the sound of this. The man she loved most is leaving her for who she thought was a mistake. She would come to regret the decision along with Yang