Ever since I obtained this power, I could never take anything seriously but when I discover a world filled with terror and death, can my uncanny power be enough to save this world?

when all hope is lost the world just seems to find a way to recover with the fall of superman by the hands of Doomsday there appeared a man with limitless power how will this world react to the "hero for fun."

The S-class heroes have been taken to watch One Punch Man, a show about the C-class hero Saitama. Not only that, but their also going to watch the future! Will they be able to over come future dangers? Will they accept Saitama into their ranks? Rated T because I'm paranoid about this stuff, and because it's my first fanfic. So be warned!