The story : "You are a new teacher at Hent High School. On the first day of your new job, you discover that as soon as you don your teacher uniform, you have an almost uncontrollable lust. Between classes, you need to force some students to engage in sexual intercourse. Determined not to fail, you decide there must be a way to teach while concealing your sexual activities."
The system :
You have to train your students in English, Math, Science and Sport
+ raise your number of sex intercourses
+ low the suspicion and morality of the other teachers
Note : I'm currently working on the next episode : Futa Sexed ! I plan to do a better game mechanic :)