マスクマン0 [Masukuman 0] [Maskman 0]

A two-issue series from 1972–1973, Maskman 0 was published by Akita Shoten and written by Kazuo Koike with art by Shunji Obata. This short-lived manga explores the early, formative days of its masked hero, offering a gritty, prequel-like glimpse into the character’s origins. Though brief, it stands as a notable collaboration between two influential creators early in their careers.