Aoi Koizumi

Little Trip: Chairperson Ayako and Yuki, who sometimes skips school, become close. They run away. Rakugaki Uwagaki: Satomi used to be a member of art club, but she stopped drawing. Due to a cultural festival, she decides to draw again. Baion: Kuroi likes recording the sounds of daily life. One day, she meets Rika. Rika begins to enjoy recording the sounds of daily life with Kuroi.

Former high school classmates, now adults, hold jealous thoughts, hidden intentions and lust for revenge. Graduates from a high school have held reunions since they graduated 10 years ago. The high school itself is located 2 hours from Tokyo by train and past reunions were held by different teams for different areas. An upcoming reunion is the first time where everyone will gather again.