Return of the Disaster-Class Hero is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here. You are reading Return of the Disaster-Class Hero chapters on www.manga-raw.club, fastest updating comic site. The Summary is
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.