One Punch Man (2015)8.7 /10

Storyline:  Saitama has always wanted to be a hero, and now, after years of hard work and training, he can defeat anyone with a single punch. However, he is no longer able to enjoy the thrill of combat and has become bored. One day, he gains a disciple in Genos, a cyborg who admires his strength. Together, they join the Hero Association in search of recognition and new challenges.