One - Punch Man Standard Edition (BD)

Saitama is a hero who only became a hero for fun. After three years of "special" training, though, he´s become so strong that he´s practically invincible. In fact, he´s too strong-even his mightiest opponents are taken out with a single punch, and it turns out that being devastatingly powerful is actually kind of a bore. With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?