The one who sent the "shoplifting video" was Shimoda Kokorozaki, Yoshizawa's childhood friend. Concerned that she was being threatened by someone, Kokorozaki informed Yoshizawa's mother about the video. However, this only intensified Yoshizawa's mother's control over him, leading him to take a break from school for a while. Amidst this, as Kokorozaki decided to visit him, Naoi entrusted her with a letter... A violent coming-of-age story about girls struggling in a daily life with no escape.