Don is one of Gohei's bearhounds. He's a three year old dog. The manga shows he's a loyal and good hunting dog, but Gohei doesn't seem to like him and Don is being often underestimated and abused by his owner. In the first episode Takeda Gohei takes his dogs to find and kill evil bear Akakabuto who is terrorizing the people in Ou mountains. However his hunting party gets ambushed and Aka and Don die while protecting their master from Akakabuto.