A new female teacher, Aya Nanjou, has just arrived at her new post. Contrary to her cute appearance, she is serious and has a strong sense of justice. She has earned the backlash of her class by forcing them to give extra lessons to the students who were just about to graduate. One day, she is resented by someone who broke into her house after she reprimanded a graduating student for bad manners. She is threatened with photos and videos of her rape and becomes the sex toy of the men... Her pride as both a teacher and a woman is shattered, and she suffers the greatest humiliation of all.