52-year-old Harada Nobuo (Furuta Arata) is a gay, cross-dressing Japanese language teacher who has joined a private high school that touts diversity. The wacky and extraordinary Harada is unbeatable in the face of authority and sets the hearts of students (Nagase Ren, Michieda Shunsuke, Nagao Kento, Takahashi Hikaru) free.