Ok Seung Yeon was Ok Taec Yeon's younger sister. He was addicted to gambling and had his sister working to not only pay bills and buy food but to also pay for his gambling habit. Tae Yeon runs into trouble with Onew and his boys when he couldn't pay them the huge amount of money he lost to them so he decides to sell his beautiful sister to Onew. When Onew meets Seung Yeon he finds himself wanting her badly so he her and makes her his slave. What will become of Seung Yeon? Will she escae or fall for her master? How did she react when she finds herself in the clutches of Onew famous mafia boss?? read to find out