The story revolves around a powerful demon bear named Akakabuto who has seized control over Futago Pass. Following this event, a silver tiger-striped puppy called Gin is born and trained as a hybrid dog-bear. Gin, the third generation of bear-dogs, undergoes numerous trials in an attempt to stop the fearsome Akakabuto from causing further harm. Riki, the leader of a large pack of dogs and Gin's father, allows him to join the pack after demonstrating his strength. In response, Riki dispatches his troops across Japan in search of strong males capable of battling Akakabuto.
Ginga Nagareboshi Gin was published in Finnish as Hopeanuoli by Punainen Jättiläinen from May 4, 2010 to November 6, 2011.