1x11 - Unforgotten Night

Danil, who can't seem to accept Kamol's willingness to give up on his mafia career for the sake of love, decides to confront him directly. Not only does Danil make unreasonable provocations towards the couple, but he also goes on to consider Kim as a thorn between him and Kamol. Thus, in his quest to break Kim and Kamol up, the sinister Danil does some digging on Kim and uncovers something that is likely to jeopardize the love between the two.