Tbhk-Keep your friends close

It's a normal day at Kamome Gakuen,Nene's cleaning bathrooms,Hanako's making fun of Kou to get a rise out of him,toilet trio 2.0 are still causing mischief,that sort of razzmatazz.Until one unfortunate afternoon,Hanako's trouble seeking brother finds an ancient artefact;a book!A book that the seven wonders had apparently kept stored away for reasons unknown to the school.Childish with curiosity,Tsukasa opens the book and reads aloud the very passage that he was told not to.A monster arises,claims the lives of several,innocent students and corners Hanako and his friends.But the trio are cornered with Tsukasa and his own bunch.The unlikely group will have to work together to take down their new challengers if they want to live.