One-Punch Man Season 1 « Series from 2015

Saitama started out being a hero just for fun. After three years of "special" training, he became so powerful that he can defeat opponents with a single punch.

Now, alongside Genos, his faithful cyborg disciple, Saitama is ready to begin his official duties as a professional hero working with the Hero Association.

However, the frequency of monster appearances is surging and it increasingly...