High School Teacher: Maturing (1985)
Original title: 高校教師・成熟
High School Teacher: Maturing is a 1985 Japanese-language drama movie directed by Shōgorō Nishimura, with a running time of 1h 9m. It stars Rei Akasaka, Saeko Kuga and Toshiyuki Kitami.
A female highschool teacher must deal with sexual harrassment from her students and being trapped in a love triangle with two men, neither of whom has any interest in marrying her.