ワンパンマン － One-Punch Man

On an unnamed Earth-like super-continent planet, powerful monsters and villains have been mysteriously appearing and causing disasters. To combat them, the world’s government created a Hero Association that employs superheroes to stop the violent creatures and villains. Each of the Hero Association’s superheroes are ranked from Class-C to Class-S. Saitama is an unranked hero, hailing from the metropolis of City-Z, who performs heroic deeds for his own entertainment. He has trained himself to the point where he can effortlessly defeat any opponent with a single punch. However, since Saitama became a hero for the fun of the experience, he has lately become bored with his superhuman power, and frustrated at the complete lack of strong opponents that can challenge him.