Not in Textbooks | 教科書にないッ！ | The romantic comedy and drama follows the manga of the same name and follows the adventures of cute and coquettish schoolgirl Shirabaka Aya and nerd of a man Tairaku Arihiko. There is a problem or two. Aya loves Arihiko. Arihiko is a school teacher. Aya is a student at the school. Aya’s father is a yakuza thug. Aya and Arihiko live in the same apartment. Aya is hot. Arihiko could lose his job.