Karate Jigoku-hen(1974)

Karate Jigoku-hen

Naoto Kiba was born from the womb of a woman killed during a home robbery in the chaotic postwar period. As an orphan, Naoto lived a miserable childhood. He was treated like a mad dog, until he was introduced to karate, and the story depicted his growth both mentally and physically.

(Source: Mangapedia, translated)