Kokoro is a female yōkai and she has romance to be far from her mind. She spends her time destroying structures and towns for the human world, sadistically watching others in pain. But when she meets a human boy, who treats her with love, he somehow makes Kokoro bonded with him. But one problem is: they can't be together due to the worlds they live in and what forms they have. They become closer, but internal and external conflicts prevent their bond. How will their love story work out?
