Bun-Bun Man is a low-ranked C-Class hero — a young, muscular man with an afro, dressed in a white skin-tight shirt bearing the kanji for "Fist," black pants, and kung-fu shoes. He fights purely with his hands, relying on his signature technique, Bun-Bun Rush, a rapid flurry of punches.
Despite his low rank and obvious fear, he's shown genuine courage when it counted: he stood up to and openly challenged the Deep Sea King to protect the people sheltering around him, fully aware of how outmatched he was, rather than staying quiet and safe.
Not stated in available material — physical description, clothing, and distinctive features are unrecorded in the source.
Not stated in detail; motivated by standard Hero Association professional standards and improving his Class B standing.
Climbed to Class B, Rank 42 during the era of rising monster frequency leading up to Garou’s emergence — a solid, upper-half standing within his class.
Active in the city during Garou’s early hero-hunting spree. Listed among the casualties after Garou’s rampage against Tanktop Master and his followers, and hospitalized at the Hero Association Hospital alongside fellow victims Mumen Rider and Tanktop Master to recover.
Class B-level physical strength and durability, well above an average human — though easily overwhelmed by Garou’s advanced martial arts.
vs. Garou — Ch. 46
Ran into the Hero Hunter during his opening rampage. Incapacitated and hospitalized — one more data point for the Association on just how fast Garou's threat level was climbing.
Minor: "Punch" 46 (background/defeat). Mentioned only: "Punch" 48 (hospitalization list).
Garou: the adversary who ended his active duty period during the Hero Hunt. Tanktop Master & Mumen Rider: fellow patients sharing the same hospital ward after their respective defeats.
Not stated in available material.
His name, "Bun-Bun," is Japanese onomatopoeia for a buzzing/humming sound, often tied to rapid movement or a bee’s buzz. Primarily serves in the story as one more data point for how dangerous Garou had become.