Based on the adult manga by Goban. Indiscriminate but unsuccessful pervert who flirts with everything female at last finds success with his childhood friend, followed by his jealous little sister.
A school secretly trains its students to be sex slaves who are then sold to the highest bidder. Ryuu, a male teacher, is entrusted with training the students. The head mistress, Sayaka, promises him a reward at the end if he does a good job. Spoiler alert: He does a good job.
