Aizawa Hyuga (Mao Inoue) is a high school psychologist. She is neither a parent nor a teacher, but an adult who can be a student\’s partner. She helps students who are troubled by school and family problems open their hearts every day, but she also has the distress of being inhumane. Hyuga has a mother who overly interferes with her child\’s life, and her distorted relationship with her mother is troubled during her growth. Just as Hyuga was enthusiastic about work every day, a boy who she cared about not coming to school suddenly confessed to her. The next day, the student died strangely. Around the death of this student, Hyuga embarked on a journey to find out the truth.