Ai to Yokubou wa Gakuen de ~Karei Naru Yoru no Butoukai~

There is a boy's boarding high school, in which students are trained to be pro sex sellers. One day, the principal tells the students to write a report, and a costume party will be held after that. To take part in it, they need to finish the report in two weeks. Their busy life with writing a report and preparing for the party starts.... [From ErogeShop]