The third work in the "Not in Textbooks!" series, which is a live-action movie of a popular love comedy manga by Kazuto Okada from "Sundome" starring Ayaka Morikawa from the former AKB48. It depicts the love pattern that the main character, a high school girl Aya Shirakaba and a homeroom teacher, Arihiko Tairaku, living together for a long time. One day, Okubo, a senior student who noticed Aya who is very popular in the school with excellent looks, abducts Aya. Tairaku heads to the rescue and falls into the worst situation. On the other hand, in the school there was an incident in which May Yayoi took the students hostage.... Morikawa played the role of Aya Shirakaba, Ryouma Baba played the role of Arihiko Tairaku, and May, an English teacher longing for Tairaku, was the debut performance of the rising gravure idol Anna Hongo.

The fourth in a school romantic comedy that features a popular comic by Kazuto Okada starring Ayaka Morikawa and Ryouma Baba. One day, a love letter arrives under the Japanese language teacher, Tairaku Arihiko, at Otome High School. Around the same time, an incident occurred around the student, Aya Shirakaba, who was living with him...

Kaiji is about to have his life changed. The thrill is beyond anything he, or most people, have experienced. The adventure is not without risk and danger however. He is given four games, which are challenges, and include life and death situations.