One Punch Man Manga Online Chapter 4
In Chapter 4: Subterraneans of Darkness, Saitama dreams of an epic invasion by the Subterranean People, a powerful race from underground. In his dream, they invade the surface and massacre humans, including heroes. For the first time in ages, Saitama feels excited, finally getting the intense battle he’s longed for. He fights fiercely and enjoys the challenge—until he wakes up. In reality, a few weak Subterranean scouts appear and are instantly crushed by Saitama, leaving him disappointed once again. The chapter humorously highlights his deep craving for a worthy opponent and the absurd curse of his unbeatable strength.