Yi-Fan takes care of Kai-En in the hospital and escorts him back home. It makes Kai-En deeply moved. Su Da decides to speak with Kai-En about their relationship in the past and end it once for all. As he's ready to devote himself to the marriage, his fiance disappears.

Su Da regrets about his fiance's leaving and goes to K. to ask for everyone's help. He learns about that his fiance is leaving for Thailand, and all of them rush to the airport to get him back. In the meantime, Yi-Fan and Kai-En are gossiped as a couple.

As the gossip goes viral, Kai-En has to clarify his relationship with Yi-Fan on the online live session for the new song on the wedding day. Kai-En doesn't know what to do. Yi-Fan notices it and brings up the bet they made.