2017

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.

2011

Kouta is the school's idol loved by all - his teacher, and his fellow students. At least the one teacher and three students we see. Who are all girls. And they don't actually "love" him all that much, they just want to fuck his brains out.