Origin
Saitama was an unremarkable job-seeker living in City Z when he encountered a powerful cyborg-enhanced human threatening a child. Inspired to become a hero, he created his own training program: 100 push-ups, 100 sit-ups, 100 squats, and 10 kilometers of running daily. After three years of unwavering dedication, his body underwent a transformation that granted him near-unlimited strength. The cost was the loss of his hair and, more significantly, the emotional fulfillment that once drove him.
Powers & Abilities
Serious Series Punch: Saitama's signature technique; a single punch powerful enough to obliterate nearly any threat instantaneously. Even casual strikes at full power generate shockwaves capable of altering planetary weather patterns and destroying entire structures.
Immeasurable Durability: His body is virtually indestructible, withstanding attacks that would obliterate mountains without significant injury.
Superhuman Speed: Despite his appearance, Saitama can move faster than the eye can follow, appearing to teleport across distances.
Enhanced Reflexes: He responds to threats with preternatural awareness and reaction time, even against opponents claiming omniscience.
Limitless Potential: His power continues to grow, with hints suggesting his ceiling has never been reached, possibly allowing him to surpass any opponent given sufficient motivation.
Key Relationships
Saitama's closest companion is Genos, a cyborg disciple who idolizes him and becomes his partner in the Hero Association. His relationship with the association itself is complicated—he is nominally the lowest-ranked S-Class hero, a position reflecting both his humility and the organization's inability to comprehend his true capabilities. He also shares an antagonistic yet respectful dynamic with cosmic entities like Garou, who seeks to understand and challenge his power.
Notable Feats
Saitama has single-handedly defeated threats rated Demon and higher, including planetary-level entities. He casually neutralized the Boros invasion, a catastrophe that would have destroyed Earth. His greatest feat may be his emotional journey—learning that true fulfillment comes not from power itself, but from meaningful connections and challenges that test more than just strength.
