Heroes, villains, and monstrous menaces are fully sealed in the One Punch Man-Verse. It’s easy to get lost in the chaos. Amid the vivid characters like Saitama and Genos, one strong figure usually goes unrecognized— Atomic Samurai. Despite his S-Class Rank 4 and unquestionable skill, many fans and viewers still overlook his true potential. It's time we shine a spotlight on this blade-wielding sensei.
Atomic Samurai, whose real name is Kamikaze, bears the prestigious S-Class place within the Hero Association. Ranked just below powerhouses like Tatsumaki and Bang, he’s recognized as one of the elite. In One Punch Man, rankings are based not only on strength but also influence and accomplishments. Despite his high rank, Atomic Samurai operates with humility and a traditional code that doesn’t lend itself to flashy headlines.
His style is rooted in bushido — the way of the warrior. While others rely on brute force or high-tech gadgets, Atomic Samurai fights with a katana and pure skill. No gimmicks, no shortcuts, just pure swordsmanship. He’s not on social media, and he doesn’t showboat. He lets his blade do the talking.

Atomic Samurai's performance during the Monster Association raid created an unfair perception of his abilities. Many One Punch Man enthusiasts point to his struggles against Black Sperm and Evil Natural Water as proof of his limitations. What's often overlooked is that these opponents were specifically selected as his perfect counters by the tactically brilliant Gyoro Gyoro.
Black Sperm's cell-splitting ability directly neutralized Atomic Samurai's slashing attacks, while Evil Natural Water's liquid form made sword combat nearly impossible. Even against these disadvantages, Atomic still managed to develop counter-strategies against Black Sperm.
Looking at the broader picture of the Monster Association executives, Atomic Samurai could potentially defeat most of them in direct combat. His skillset would allow him to handle opponents like Nyan, Gums, Fuhrer Ugly, and potentially even Gouketsu with his Sun Blade. This success rate against dragon-level threats exceeds what many other S-Class heroes could achieve.

Within the One Punch Man universe, Atomic Samurai's abilities aren't just demonstrated through his own feats but also via his disciples. His three students—Iaian, Okamaitachi, and Bushidrill—have all reached impressive levels under his guidance. Iaian, in particular, has demonstrated remarkable capabilities, holding his own against formidable opponents and even temporarily defending against Evil Natural Water.
The Sun Blade and the Abilities of Atomic Samurai in One Punch Man
The introduction of the Sun Blade in One Punch Man revealed that Atomic Samurai's ceiling is much higher than previously thought. The ancient weapon responding to his "worthy spirit" demonstrates that his mastery of swordsmanship reaches beyond technical skill into spiritual understanding. With this weapon, he was able to damage Golden Sperm—a feat few S-Class heroes could accomplish.

Atomic Samurai has also mastered numerous specialized techniques. His famous Atomic Slash can deliver hundreds of precision cuts in an instant. The Atomic Beeline Slash concentrates those multiple cuts into one focused attack for greater penetration. He's also mastered the Air Blade technique, giving him ranged capabilities that complement his close-quarter expertise.
The perception-blitzing speed puts Atomic Samurai at a level where he could potentially overwhelm many opponents before they even begin their attacks. Whereas his precision allows him to target vital points with unmatched accuracy.
In the end, Atomic Samurai is a quiet storm in One Punch Man. Overlooked, underestimated, but undeniably powerful. His apparent failures stem from specifically engineered bad matchups rather than any inherent weakness. He might not scream or explode, but he carves his legacy one precise slash at a time. And maybe — just maybe — that’s the kind of hero we need more of.