All Might

A big dude who inherited a power that was passed on from generation to generation he was the 8th holder of the power. He thought he finally killed the person his power one for all was meant to stop be instead he just badly injured him. Then later All Might became the #1 Hero then later a teacher after finding the person who was going to be the 9th holder of one for all. Then he came face to face with All For One the person One for All was meant to stop. So All Might made his last stand against him and won. No All Might did not die, but he didn't kill All For One with his final blow the United States Of Smash. All for One was nearly knocked out. Then All Might had to retire from being a hero leaving it to his best friend (besides the 9th holder Izuku) Endeavor.