Shy Ayu Tateishi has just made a new friend at school. But this new friend, much to her surprise, is no ordinary classmate. Nina Sakura may look like a normal middle school girl, but she's got a big secret. ...

Tootsuki Yaya can see things nobody else can. One day, she is attacked by a monster-spider, and a puppy comes to her rescue. But when she unties the strange ribbon around its neck, it turns into the Wolf Kin...