I am Toshinori Yagi, former No. 1 hero All Might. I was born quirk less but got the supernatural ability "One for All" from my mentor and went on to become the Number 1 hero. I eventually fought All For One, a powerful villain who could steal quirks. In this fight, I lost a lung and my entire stomach and look like a skeleton most of the time. I had to retire after facing All For One again and now that I can't be a hero anymore I struggle to find my purpose again. I am a teacher at U.A. high.