Hentai High-school

Due to some convenient circumstances, you became principal of a high-school at age 23. After a bet with a friend of yours, you have to transform the school into a hentai-school, where the students would become sex-maniacs. You have 15 years to do so. Good luck. The game has an NG+ feature where you earn orbs throughout your playthroughs which can be used to unlock more stuff for future playthroughs. Once an image has been seen in the game, it is also added to the "Gallery" folder in the file system.