Saitama became a hero out of a simple desire to help. The turning point came when he saved a child from imminent danger, and he resolved to dedicate himself to the path of heroism, training rigorously for three years. Now possessing strengt…

A monstrous entity advances upon City Z, a creation of the enigmatic organization known as The House of Evolution. Genos, a young cyborg, strives to halt its progress, but finds himself overwhelmed before the arrival of Saitama.

Saitama and Genos gather details concerning the enigmatic House of Evolution and its founder, Dr. Genus – a scientist harboring perilous ambitions regarding the artificial evolution of humankind. Simultaneously, Dr. Genus becomes aware of S…

In City F, a faction of terrorists, identifying themselves as "The Paradisers," has emerged. They are led by a towering figure known only as Hammerhead and advocate for a radical redistribution of wealth. Their initial targets are the afflu…

Despite three years of heroic deeds, Saitama recognized the public knew him not at all. Yearning for some acknowledgment, he resolved to become a professional hero. First, however, he would need to pass the Hero Association's rigorous exami…

Five days have passed since Saitama officially became a hero, and he remains conspicuously without a single heroic deed. Genos informs him that C-class heroes who fail to engage in combat are removed from the registry after a week of inacti…

A colossal meteor streaks relentlessly towards City Z, compelling the Hero Association to summon its most powerful, S-Class heroes. Their combined efforts, however, prove futile. Faced with impending disaster, Genos resolves to act alone, d…

A band of monstrous beings, identifying themselves as the “Clan of the Seafolk,” descended upon the coasts of City J with the purpose of invasion. The hero dispatched to confront them was swiftly overcome by the Deep Sea King himself. In re…

With the conflict against the Deep Sea King nearing its decisive moment, the heroes continue to fall victim to the tyrant's relentless assaults. Among them, who possesses the strength and virtue to truly earn the title of hero?

Saitama accompanied the Class S heroes to an urgent meeting, where they learned of a prophecy from a seer foretelling grave danger to the planet. The crisis, the seer had indicated, might manifest within the next six months. Yet, to their a…

A gargantuan vessel hung in the sky above City A, and on the ground below, a member of its formidable crew engaged a party of S-Class heroes. Despite their considerable abilities, the heroes struggled to defeat the foe. Separately, Saitama …

Lord Boros, a being of almost unimaginable power, has journeyed across vast stretches of space to find one person: Saitama. Driven by an unbearable ennui, he seeks the hero's company. With humanity hanging precariously, will these two champ…