Genba is one of the main villains in the anime and manga, Ginga Densetsu Weed. He is Hougen's younger brother, and looks almost identical to him, except he has longer ears and yellow eyes.
Genba leads Hougen's invasion of the Futago Pass in episode 13. The two brothers had made a promise after devouring their cruel owner that they only ever wanted to be killed by each other's fangs. Hougen fulfilled this promise in episode 18 out of mercy after Genba went insane due to a massive head injury once being thrown off a cliff by Tesshin and Shigure. Hougen then kills his younger brother to end his suffering.