Itsudatsu Ai ~Ore ni Yarasero~

"Let me do it. All the girls are mine...." The main character meets Emi, who has been looking for him. She gives him an offer.... "I have found a good family, only girls, beautiful. We can sell them and earn much money.... I want you to give them a sexual training. Please keep them virgins, otherwise the prices will go down...." He accepts her offer and goes to their house as a "boarder"...