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?!
But I don't think the Seven
School Mysteries are involved with this...
ولكنّي لا أعتقد أنّ ألغاز المدرسة
...السبعة لهم علاقة بهذا
Aber ich habe das Gefühl, das diese Vorfälle
nichts mit den Schulwundern zu tun haben.
Pero creo que no tiene relación
con las siete maravillas.
Pero creo que no tiene relación
con los siete misterios.
Par contre, je ne crois pas
que ce soit lié aux sept mystères.
Però...
Mas eu não acho que os Sete Mistérios
da escola tenham a ver com isso...
Но мне почему-то кажется, 
что школьные тайны здесь ни при чём...