Although she had her first girlfriend... Live-action complete series: Kashiwagi Konatsu, Amatsuki Anzu NIMA-036

One summer, I mustered up the courage to confess my feelings to Ms. Aizawa, who was also a library committee member, and we started dating. However, the joy was short-lived. Ever since that day I had my first girlfriend, my usually gentle childhood friend, Miki, suddenly changed and stole my virginity… Although I felt guilty for having a girlfriend, I gradually became a victim of Miki's temptations. One day, while we were having an affair in the library, my girlfriend, Ms. Aizawa, caught us in the act. However, an unexpected remark from Ms. Aizawa caused our relationship to completely spiral out of control…