The boy "Nao" who was worried that he was bigger than his short back, now he is confident that he often has sex with his sister-in-law's friends "Nagisa" and "Yukiko". On the other hand, my sister-in-law's "Chiaki", who was thrilled by her younger brother, accepted a forcible invitation from her younger brother .

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.