- 36 year old Haga Ineko (Kichise Michiko) has successfully passed the teachers' exams witht he encouragement of the students of Class 4/3. She would like to say that she is still single... but she has received a proposal from Shioda Wataru (Kaname Jun), the former assistant form teacher, and congratulates herself as she gazes at the engagement ring that she has received from him.
However, on day, Tao (Kurosaki Reina), a girl whose parents were deported for illegal entry into Japan, transfer to the school and Hagane's class. Even though Tao is of a different nationality, she is surely a lovable student and Hagane accepts Tao with this sentiment... But Tao, who feels resentful of Japanese people quickly gets into a conflict with her classmates.