The couples from Season 3 each choose one travel mate they want to become friends with and go on a double date with them. Song Da-hye picks the participant who sent her a text the night before, and they all go to try partner yoga together. Lee Yu-jung and Choi Chang-jin carefully observe the chemistry between the participants and choose a couple. The participants don’t choose their dates themselves, but they get to go on a date with someone they are interested in. The repeated coincidences make their hearts flutter. Will it be okay to expect that the coincidences will lead to a special relationship?