Proper Japanese Title: 天の覇王 北斗の拳ラオウ外伝 (Ten no Haō - Hokuto no Ken Raō Gaiden)
Also Known As: Legends of the Dark Kings: A Fist of the North Star Story
Originally serialized in Weekly Comic Bunch. A spinoff of the manga Hokuto no Ken.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/ten-no-hao-hokuto-no-ken-raoh-gaiden/4050-44669/).
