Hokuto no Ken

Synopsis

To gauge his strength after his recovery, Raoh challenges Koryu in a battle to the death and emerges victorious. Koryu's sons try to kill Raoh, but he is too powerful and easily defeats them, but lets them live. Meanwhile, Zengyo tells Kenshiro and Toki of Raoh's intentions. Kenshiro and Toki fight to determine if Toki is strong enough to defeat Raoh and Kenshiro wins. Nevertheless, Toki prepares for a death match with Raoh, fulfilling his own destiny to die as a martial artist, fighting the other adopted son of Ryuken.

(Source: Wikipedia)