Oushun Jogakuin no Danyuu سلسلة هنتاي

The stage is set at Oushun Academy, an institution for wealthy young women. Keeping up the “proper lady” act is stressful, so a certain unassuming janitor is selected to play the role of relieving their pent-up sexual frustrations… Also known as: 桜春女学院の男優, Backstage at Oushun Academy