Shin Hyun-joon and his wife are experiencing a special "Change Day." In the final episode of tvN STORY's "Each House Couple," airing on the 20th, a special day in the lives of Shin Hyun-joon and Kim Kyung-mi will be revealed. This program shows the different lifestyles of this couple, who have been weekend spouses for two years. While Shin Hyun-joon focuses on self-care and invests time in himself, Kim Kyung-mi is raising three children in Songdo while dealing with educational issues. Their extreme daily lives evoke laughter and empathy.

Shin Hyun-joon suggests to his wife Kim Kyung-mi, "Let's switch houses." Through this new experience called "Change Day," the couple gets to experience each other's daily lives. In the preview video released before the broadcast, Shin Hyun-joon is seen greeting the morning with their three children in Songdo and video calling his wife. Confidently, Shin Hyun-joon says, "It was so peaceful," but Kim Kyung-mi feels uneasy, saying, "That's strange?"

This uneasiness becomes reality. Their second child, Ye-jun, complains, "Dad, I don't want to eat. It's so boring," and their eldest, Min-jun, also expresses dissatisfaction with breakfast. Shin Hyun-joon struggles to meet the different demands of the three children. Preparing for school is full of chaos, and Shin Hyun-joon breaks into a sweat. In this process, Shin Hyun-joon's parenting experience is put to the test.

Meanwhile, Kim Kyung-mi, who stayed in Seoul, embarks on a solo "treasure hunt." She searches throughout the house, tracking suspicious traces. The moment Kim Kyung-mi identifies the identity of the treasure, Shin Hyun-joon, watching in the studio, cannot hide his embarrassment, saying, "We're doomed." Curiosity is sparked about what the "Hyun-joon's treasure" Kim Kyung-mi found actually is.

In the final episode, Shin Hyun-joon and Kim Kyung-mi fully experience each other's day and take time to reconsider the question, "Do couples have to live together to be a couple?" It captures the process of these two, who have lived in different spaces, confirming their spouse's daily life and the feelings contained within. The production team stated, "In the final episode on the 20th, Shin Hyun-joon and Kim Kyung-mi will switch roles and face moments they have never seen before. It will be the finale that condenses the program's concept of 'A New Normal Couple Life That Is More Tender Because They Are Apart.'"

The final episode of "Each House Couple" will air at 8 p.m. on the 20th. The follow-up program, "One Meal with Yong," is scheduled to air at the same time on the 27th.