Ienai Koto wo Shita no wa Dare?

Rio, the school nurse at a junior high school, receives a mysterious phone call. She thought it was just a prank call at first, but then she finds out the true meaning of the message.... Junior high, where the teacher holds absolute power over the students. The teacher can invade their private space, and no one will bat an eye. The students themselves are still unstable and immature. Despicable sexual harassment and assault occur within the school environment because of these factors. Rio learns of one such incident that once took place at her school, and discovers that the same horrific act is now playing out once again. Rio's position as the school nurse, the closed-minded nature of the school's management, and the victims' attempts to hide the shame… all are obstacles standing in her way. This is the story of Rio's solitary struggle to stop the cycle of abuse, and to save those who have been victimized! (Source: Kiss Comic, translated)