After School Nightmare tom 01

You have just awakened to find your darkest, ugliest secret revealed to a group of people, who would do anything to destroy you: your classmates! This is what's happened to Ichijou Mashiro, whose elite school education turns into the most horrifying experience of his life when he's enlisted by a mysterious school nurse to take an after-hours class. Only those who pass the class will graduate, and the only way for Mashiro to pass is to enter into a nightmare world... where his body and soul will be at the mercy of his worst enemies. Can Mashiro keep his life-long secret - that he is not truly a "he" nor entirely a "she" - or will he finally be "outted" in the most humiliating way possible?