Taeyoung and Rohui prepare an event for the couple's 6th anniversary and take a summer trip to a river with Eugene. Gyojin's family welcomes visitors while Gyojin gets to have pregnancy experience to understand Ehyun better. Jiyong and Seungjae's zone-out stay takes an unexpected turn. And Seojun and Seoeon learn about sportsmanship by competing with each other at the sports class.