Ever since his parents died 10 years ago, Ryuu has been raised by his mother's cousin, Madoka. As Ryuu grew older, their relationship became almost closer than that of a mother and a son. Then one day, Madoka disappeared, leaving only a letter. A maid then arrived, and told Ryuu that from that day on, he has to work as a servant for at the Yotsuka Mansion to pay off the debt his mother has incurred.
- Official site (must be 18 or older to enter)