Fist of the North Star: HOKUTO NO KEN
TMDB
all seasons:
1
season number: 1
number of episodes: 4
IMDb: tt29106483
overview
In the year 199X, the world was engulfed in nuclear fire!! Yet...humanity somehow survived!! A lone man with seven scars on his chest emerges. His name is Kenshiro, heir to Hokuto Shinken. In a world where only the strong survive, Kenshiro forges a path with his iron fists!