Deku was born quirkless and everyone pity or treated him like trash but what if deku was given the abilities of the doom slayer which caught the certain person, follow deku on his way to be a hero and slayer of demons
A lone man, one long forgotten by all, returns to his home planet, only to see nothing but death and abandonment. Realizing the world needed him once more, he roams the Earth, finding others with the same intention as his along the way.