Izuku yagi was neglected and abused because he had no quirk as Izumi and her friends took it to far from the bully and made izuku lose left arm they freaked out and ran away Izuku bleeding to death till someone saw him and took him to the hospital as his left arm had to be removed as he was laying there in on the hospital bed izuku started to sing

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What he didn't know that the nurses and doctors were listening izuku sing as the next  yagi family arrive to the hospital to see izuku left arm gone now izuku told them why he's left arm gone and doesn't want to be hero anymore also hope his ex family get killed by villains

After the doctors gave izuku a prosthetic left arm izuku wants to be a beacon to quirkless people as practice his singing and dancing now izuku was ready help the quirkless people as izuku uses his singing and dancing to get famous and uses the money to help quirkless people

Ship
Izuku x Tory