S1E12 : The Formula for Treachery

　Mathematics teacher Yu Teshigawara is an elite teacher who has distorted feelings in Fuyutsuki. Therefore, I don't like Onizuka, who is close to Fuyutsuki. 　Teshigawara, who wants to get rid of Onizuka from the school, decides to use the help of Mrs. Ota, an influential person in the women's group.