One-Punch Man, Vol. 4Life gets pretty boring when you can beat the snot out of any villain with just one punch. Saitama is now a certified hero! And with that title comes great responsibilityhes required to perform one heroic deed per week. While Saitama makes the rounds to meet his quota, an incoming threat from outer space is screeching toward Earth Saitama is now a certified hero! And with that title comes great responsibilityhes required to perform one heroic deed per