"How can we make this world better?" St Venille High just got blooder! A fresh batch of students got enrolled in the 6th class. In the bizarre world of St. Venille, are you ready to unfold its darkest mystery? Once you're in, there's no turning back. In order to survive, you shall remember the only rule of this class: it's to kill or be killed.

Eight persons in a house. One man. Seven women. Relationship with each other? None. Just TOYS and a master. Sex slaves? Nah. Definitely morethan that. What will you do if one day, YOU'LL BECOME THE EIGHTH GIRL?