黒いねこ面 [Kuroi Nekomen] [Black Cat Face]

A single-issue horror comic from 1967, published by Akita Shoten, this is a standalone work by the legendary manga creator Kazuo Umezz. It stands as a chilling, self-contained story that showcases his distinctive, unsettling artistic style and early mastery of psychological dread, making it a notable artifact from the dawn of his influential career.