Seifuku niku dorei(1985)

Overview:

Seventeen year old female high school student Sadako Hashimoto is a lonely and bullied child. The homeroom teacher, Miyamoto, nagged and preached to the truant Satoko, sparking a desire. Satoko has aspirations for the female teacher Nanshunko, who has a relationship with Miyamoto. Unhealthy classmates Fumio and Meizhi discovered the photo of Shunko posted on Satoko's notebook, bullying her as a "pervert of Lace".