Seek: Chikashitsu no Mesu Dorei-tachi

While attending the funeral of a father his hasn't seen in 10 years, our guy found out about his father's job of SM painter, but actually a SM trainer and Will of one billion yen, now half to his assistant and half to an orphanage. If he can become a SM trainer in one month, assistant will be judge, then he can get the whole one billion yen. Well, how well he can train three girls will have different outcomes.