Happy-go-lucky orphan Yu Honda has to move in with the family of Yuki, the high-school boy she secretly adores. However, she is not expecting to discover that they are a family of sorcerers and shape-shifters. Based on the manga by Natsuki Takaya in Hana to Yume magazine.

As a child Kyo's favorite animal on the Zodiac calender was the cat. He has hated Yuki (the rat) since childhood. He constantly wears a rosary made from bones of a miko. When these are removed his true form is a horrible beast.