Shuichi Kagaya an ordinary high school kid in a boring little town.But when a beautiful classmate is caught in a warehouse fire, he discovers a mysterious power: He can transform into a furry dog with an oversized revolver and a zipper down his back.He saves the girl's life, sharing his secret with her.But she's searching for the sister who killed her family, and she doesn't care how degrading it gets: She will use Shuichi to accomplish her mission...