1x4 - No Gain No Love

What are the odds of staying at the same hotel as your ex on your wedding day? Thanks to Woo-jae and Yi-lin, Hae-yeong and Ji-uk spend the night together. She teases him about his inexperience, and he mentions their kiss. They spend the night discussing gains and losses. Hae-yeong goes on the honeymoon alone while Ji-uk disappears without a word. Hae-yeong spots Ji-uk at an unexpected place!