Soukoku no Garou: Hokuto no Ken Rei Gaiden

Rei was once a compassionate person, but his humanity was taken by his desire for revenge. Now, he wanders the world alone, driven by a singular purpose: to find a specific individual. His journey is one of relentless pursuit, and he shows no mercy to those who stand in his way. Until his vengeance is complete, he remains a cold, vengeful figure, unable to return to a normal life. He operates as a solitary predator, targeting anyone who opposes him.