

Shortly before midnight, Saneatsu and his friends begin their plan to distract the Emperor's puppets and storm the tower. Unfortunately, things don't go as smoothly as the students had hoped.
Aside from his dislike of PCs, Saneatsu is a completely normal student. However, when he receives a strange message during computer science class, his life is turned upside down. A deadly game begins for him and his classmates.
Saneatsu and all the males are dead?! The survivors move forward, looking for post boxes, Rights, and hope. Meanwhile, those who have Rights begin to make their moves... But what even are these "Rights" and "Prime Rights"?
Sudo and Saneatsu come up with a plan to identify the traitor in their ranks. When Saneatsu encounters other survivors, he tries to gather more information about the majority decimation.