Park Jong Hyun once was a very wealthy, successful businessman. He was the director of the biggest company in Seoul. His wife deceased after she gave birth to their first and only son, Park Leeteuk. 10 years ago, Jong Hyun had a car accident in Seoul, and so he was brought to America to get a better treatment. His son, Leeteuk really cared for his father so he accompanied him there. Jong Hyun was then discharged from the hospital but they said that his right arm was dislocated for the rest of his life. As the result, he was kicked out from his company and he became very poor. Frustrated, he wanted to have his revenge. He wanted the person who caused the car accident to pay what he did to him. Because he certainly can’t do this with his own hand, he ordered his only son, Leeteuk to avenge him.