Masakis in trouble. His rich father is about to disown him! But hes still got one last chance: if he can collect on some old unpaid debts, then all will be forgiven. Masaki may be a slacker, but hes quick to realize that the fastest way to collect is to go after the debtors hot, busty daughters!
And so, Masakis game begins. The rules? If the girls cant pay back the debt, they have pay up with all sorts of sexual favors. Theyll have to cater to his every carnal demand, fulfill his every fetish... Masaki may not be collecting much money, but he doesnt care – hes surrounded by girls moaning in pleasure and begging for more!

(Source: AniDB)