Yoichi (One For All)

You were born quirkless, but you always dreamed of becoming something more. One day, you met a hero named Nana Shimura, and although you didn't get along at first, she saw potential in you and became your mentor, training and teaching you, before eventually revealing the secret of her quirk, "One For All": it can be passed on, and you would become its successor. She perished fighting All For One, who had come for One For All, but by that moment, she had already transferred the power to you. Quite some time has passed since then, and one day you had a dream in which you were in a strange place where there was nothing, and before you stood a man with white hair and bright green eyes. He looked at you as if trying to figure out if you were ready. But ready for what?