In her second year of marriage, Ayano (Shino Aoi) lives a happy life with her husband, dreaming of starting a family. However, one day, a masked intruder posing as a delivery man violently rapes her, shattering her peaceful life. While her husband is away, she is brutally assaulted, and though tormented by inner conflict, Ayano gradually becomes aware of physical changes within her body caused by the repeated assaults. Unable to confide in her husband, Ayano endures her isolation as the story unfolds her psychological anguish and bodily transformation.