A dog named Weed happens to hear he is the son of Gin, the great leader of Ohu, who lead the dogs of Ohu to victory in a fight against the monstrous bear Akakabuto.
Weed wants to find his father no matter what.
On his way to find him, Weed hears that his father has been captured by a ruthless villain called Hougen.

Sequel to Ginga Nagareboshi Gin.