An Inukami, a sacred being with a dog-like appearance, forges a contract with a powerful human tamer to help them eliminate evil monsters and demons. Though Kawahira Keita is the descendant of a long line of Inukami-tamers, he seems to lack the necessary ability and has been forsaken by his family. One day, he meets a cute Inukami named Yoko, who, at first glance, looks graceful, obedient, and beautiful but upon forging a contract with her, Keita discovers that Yoko is a wild and mischievous Inukami that no one has ever been able to control.
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