Return of the Disaster-Class Hero

I was the greatest hero on Earth. “But he’s dead. How could the guy we’ve killed come back?” “I dunno. But if he can come back, just let him.” I really came back after 20 years? “Why’re you so surprised? What? Did you do something to hurt your conscience?” You bastards. Just you wait.
Genres:
Action, Fantasy, Shounen, Adventure