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.
During the summer vacation period, temporary teacher Honoka Kimijima is in charge of a supplementary class. One day, a female student suddenly jumps off from the school rooftop and dies in front of Honoka Kimijima. Then she notices a mystery student who is not supposed to be there.
Ecaterina, a high school Religion teacher and wife of the town priest, gets involved with Iuliu, a 16-year-old student with a troubled past. Ecaterina tries to keep him under control, but she loses her own sense of control in this process.
New female teacher became a target of a trouble making gifted student's bullying. But their confrontations soon developed a romantic undertone and they began to have a secret affair that played fast and loose with their feelings.