Miyuki has worked tirelessly as a single mother to raise her son, always putting her own needs last. One day, while finally indulging in a rare moment of self-pleasure, she is caught by her son's friend, Tashiro. After he captures her compromising state on camera, Tashiro uses the photos to blackmail her. Stripped of her dignity and forced to obey his every command, Miyuki begins a downward spiral where she slowly loses her pride to her son's classmate.