It's graduation season at this regular high school. A boy enters the girls' washroom, gets recorded in the act, and now he has been blackmailed into trying to record a certain number of girls excreting their waste. That blackmailed boy...is you.
"My job is to train you to squirt like a girl with nothing but nipple teasing." If you're looking for nipple sensitivity development, this otoko no ko parlor is the right place for you.
Down a certain back street, there's a brothel run by succubi called Yumemitei. Today, a popular hero decides to visit. There, he's serviced by Lafilia and Zefilia, and at Yumemitei, you're allowed to do anything you want...