Now that all the siblings are revealed, they feel comfortable around each other. Yun-jae, Jung-sub, Chul-hyun, and Ji-won stay up all night at the basement hideout to drink and chat. There is a spark of some kind between Jung-sub and Ji-won. Meanwhile, the siblings must make a decision again. They can choose to go out on a date, or they can choose to let their siblings go on a date.