Sudachi no toki kyoiku wa shinazu(1981)

Here is a school that has never expelled a single student, believing in its children even after betrayal and betrayal after betrayal! Yoji (Yoichi Sase), the son of a doctor in Suwa, and Nobuko (Mayuki Kirihara), the daughter of a weaver in Kyoto, are transferred to the class of Omura (Chiemi Eri), a PE teacher at Shinonoi Asahi High School, a private school for troubled children. The school principal (Hiroyuki Nagato) says that the school's policy of "not letting anyone drop out of school" must be upheld, and Omura struggles to do everything in his power to respond. Based on a true story by Shigeta Wakabayashi, an education critic, the film depicts the relationship between a student abandoned by his parents and a teacher who sincerely deals with them.