Brand new Saitama is too powerful; so powerful that it eliminates all the fiercest monsters with a simple punch. Discover the story of the most powerful superhero in this manga that will knock you out!! Pri-Pri Prisoner suddenly finds himself face to face with Garoh in the underground maze of the monsters' lair. And no luck for him, the hero hunter seems stronger than ever… Meanwhile, Saitama decides to team up with Flashy Flash, while on the surface, the class A heroes are being bullied by Meow. That's when Mecavalier enters the track!!
