Miu, a married woman living alone with her son because her husband is on a business trip. One day, she is told by her son's friend that her son is bullying him. Taking advantage of her flustered attitude, the man forces her to perform oral sex. The bullying story was a lie to trap her, but unaware of this, Miu cannot strongly refuse the act. However, as she was already frustrated, she gradually starts to care less about the truth of the story and gets drawn into the repeated intense sexual acts...