Omi tries to tell the others about Persia. Back at school, Ken is having trouble with the other students. The three find new evidence, but they start to think that the answer to what is happening may not be the Academy after all.
Yoji starts to work as teacher and Ken pretends to be a student. Yoji is envious of Klaro. Aya and Ken find the secret place in which Todo took his own life. But they are too late to find anything of importance.
Ken and Yoji get their own mission to handle things with the Z class. Yoji blows up an entire building; there are casualties. Ken enters the control room, steals all the data, and kills most of the people in the room.
Kyou flees the school with Misuki. Todo finds secret documents about Inagaki. When Kyou finds Todo in the secret room, Todo kills himself. Aya and Izumi lose a battle against a student from class Z and Rex has to save them.
Aya and Rex are angry at Izumi for killing Inagaki. Kyou offers some words of comfort. Todo gives the command to kill Izumi and Misuki (Todo's girlfriend) in order to implicate the Knights. Kyou saves Izumi, but blows his cover.
Strange suicides at Koua Academy shock the entire country. The Knights of the White Cross are assigned to the case; Aya enters the school as a teacher and Sena Izumi enrolls as a student. Izumi befriends Nozomi Miyazawa.