Mana goes to Cat-girl saying, "lately, creepy things have been happening at school." After learning that one of the seven wonders of Mana`s school, Hanako-san of the third floor girl`s bathroom, is a friend of Cat-girl`s, the two of them go to see Hanako, but they can`t find her. And it`s not just her. None of the yokai of the other seven wonders has been seen lately. Just then, the Sand-throwing Hag and Child`s-cry Old Man arrive, having not been able to contact their old friend Ninomiya Kinjirou. They sense someone`s presence and chase after it, all the way to the boy`s bathroom on the second floor... What is happening at the school?!