Kamikaze (カミカゼ, Kamikaze), better known by his hero alias Atomic Samurai (アトミック侍, Atomikku Zamurai), is the S-Class Rank 4 professional hero of the Hero Association and is recognized as one of its most powerful heroes. He is a swordmaster and a member of the Council of Swordmasters.

Atomic Samurai has long black hair tied in a ponytail. He has dark eyes and a defined jawline. He sports a small goatee and is usually seen chewing on a thin splinter of wood. His attire consists of a hooded red cloak with an atom symbol on the back draped over his open blue haori. Beneath the haori is a traditional loose-fitting white robe tied with a white sash and two haori himos. He wears his swords on his left side.