Asuka Tsukasa has an irrational fear of animals, especially dogs. This fear becomes a significant obstacle as he pursues his studies in London, a city that loves dogs. However, he is determined to unravel the mystery surrounding his mother's disappearance and find the girl he dreams of, who always grins at him mysteriously. However, things become even more difficult for Asuka when he is invited to join a covert group that promotes friendly relationships with supernatural creatures while defending the world from dangerous ones. Despite all this, he finally meets the girl he has been longing for, only to realize that she is a monstrous creature intent on tearing him apart.
