Sensei's Pious Lie.

Misuzu Hara (Nao) works as a high school teacher and prefers to keep a distance from her students. In her past, she was raped by her best friend’s boyfriend Hayafuji after he found out she liked him. She didn't report the crime to the police and she didn't tell anyone else what happened. She still suffers from the trauma from what happened, but she continues to have a forceful relationship with Hayafuji who is now her best friend’s fiancee. One day, a rumor spreads that her student Yuki Niizuma is in a secret affair. Misuzu Hara, as his teacher, has a meeting with him to provide counseling.