The Tamayori-hime bears the loneliness and accumulated sins of others without complaint, sustained by the duty of sealing the sword that would otherwise end the world. That solitude is broken on a snowy night when she meets a god named Gentouka, who possesses the ability to grant immortality and has been pursued across the land by government officials intent on capturing him. His arrival pulls new trouble and complications into her life in ways she cannot yet see.