Saitama is new to be a superhero and he is having difficulty finding an opponent that can match his power.

Saitama has finally found a worthy opponent when aliens invade the planet. But with the fate of the Earth resting on his shoulders, has Saitama bitten off more than he can chew.

Saitama is now a certified hero! And with that title comes great responsibility-he's 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 ...

Nothing about Saitama passes the eyeball test when it comes to superheroes, from his lifeless expression to his bald head to his unimpressive physique. However, this average-looking guy has a not-so-average problem -- he just can't seem to find an opponent strong enough to take on! An emergency summons gathers Class S heroes at headquarters ... and Saitama tags along. There, they learn that the great seer Shibabawa left the following prophecy: "The...

"Garo has just left the Monster Association's hideout when he crosses paths with Saitama, who's in quite a pickle, but Saitama still doesn't know Garo is the Hero Hunter. Later, King the Ripper can no longer hold back his murderous urges and confronts Garo himself"--Provided by publisher.

Nothing about Saitama passes the eyeball test when it comes to superheroes, from his lifeless expression to his bald head to his unimpressive physique. However, this average-looking guy has a not-so-average problem--he just can't seem to find an opponent strong enough to take on! Narinki's private force is now free from Super S's control. Bushi Drill, Okama Itachi and Iaian plot their escape, but threat level Demon monster Malong Hair appears before...

Life gets pretty boring when you can beat the snot out of any villain with just one punch. Nothing about Saitama passes the eyeball test when it comes to superheroes, from his lifeless expression to his bald head to his unimpressive physique. However, this average-looking guy has a not-so-average problem-he just can't seem to find an opponent strong enough to take on! In an underground labyrinth, Puri-Puri Prisoner encounters Garo, who is now stronger...