SM Teacher: Tied Up by Students (1996)
SM Teacher: Tied Up by Students is a 1996 Japanese pink film directed by Yutaka Ikejima and scripted by his wife, screenwriter Kyōko Godai. It won the Best Film fourth place award at the Pink Grand Prix ceremony. Actor-director Kazuhiro Sano was given the Best Actor, 2nd place award for his performance in this film.
More at Wikipedia.