Masaki didn't attend school and spent his wealthy parents' money on womanizing. Then, his father, Gengorou, disowned him but said, "Bring me at least one person you control, and I'll reconsider." The condition was that he had to attend school properly and couldn't use money to achieve this. Instead of cash, he was handed four IOUs indicating significant debts owed to his father, Gengorou. "If I use these, controlling one or two people will be a piece of cake! Besides... the world works in convenient ways. The daughters of these debtors happen to attend the same academy as me. If I train them and make them my slaves, everything will be resolved! I'll even feel like going to school. ...Now, what methods should I use..." Riko, the maid, was moved for the wrong reasons, thinking, "The master who only played around is now motivated to go to school..."