Kyûkyoku onanie: Yume jigoku (1986)

Hitomi has ended her "affair" with a man and taken the first step towards a new life. She then starts a new relationship, but it turns into a love triangle. Furthermore, she knows it will be difficult to step in between a man and a woman who are passionately expressing their true feelings to each other, so she steps aside. Hitomi discovers a new form of love and grows up in a new way...

Unfortunately the movie Kyûkyoku onanie: Yume jigoku is not yet available on HBO Max.