Akari is a top class honors student who is planning to go on to a famous university. During this winter vacation, she visits an empty school to receive individual lessons from her teacher "Oshima". However, when she arrived at the staff room, Oshima asked her to do something. It was her request to teach her study to the withdrawal student "Zuo Ci" in the same class. While wondering, Akari heads to the designated place in the school, but... Falling into the trap of the brutal teacher and the scum, the inescapable circle hell and mind control. ＃Yoro P
