New item 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!! Bushidozer and his comrades, accompanied by Pabrika, the leader of Rupin's mercenaries, must face a watery monster. No matter how hard they butcher it, it is impossible to destroy it. And as they struggle painfully, Pabrika is hit by several shots... At the same time, Saitama comes face to face with the massive dog Rex, while Tatsumaki must face Scrutt, the overall commander of the Monster Association. A violent battle with telekinetic powers begins!!
