Terrifying Girls' High School: Women's Violent Classroom 1972

Terrifying Girls' High School (恐怖女子高校 Kyofu Joshi Koko) is a 4-film series of Pinky violence pink films made by Toei during 1972 and 1973. Reiko Ike was the star of all four films, and Miki Sugimoto co-starred in the first two.

https://themoviedb.org/collection/119236