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.

2009

On spring break, Daisuke heads to a tropical island. Turns out, his female cousin and a couple of his girl friends are also there. What do you get when you put them all together with a bunch of teenage hormones? A harem. It's always a harem.