Mingi Song. The Mafia King of Seoul South Korean was on a mission to take down a rival mafia leader Euiwoong Lee. Mingi is the toughest cold hearted leader on the east side of Seoul that was until he met Kayla Park his assassin Seonghwa Park's little sister who he swore to protect form everything. Kayla Park was very different for Seonghwa and she was the only one that got to see Mingi's softer side.