Season 4
22 listed episodes · First aired October 1, 2025
Episodes
Exchange is back with its 4th season, and 8 participants gather at the house. They can only exchange their names and nothing else, but through the EX Introduction, they get to know more about each other. The bell rings …
E2A Breakup Locked in a ClosetThe participants got to know about each other through the EX Introduction. It seems like the introduction made them curious about others, but then, the bell rings again, surprising everyone. The female participants must…
E3Sweet and Bitter MomentsThe four couples go out on a date. Since the female participants chose their dates, all of them seem proactive during the date, and their chemistries make the hosts root for the new couples. However, when they come back…
E4Passing CarelesslyThe eight participants are confused after having a date during the day. Some find new people charming, but some are bothered by their exes as they seem fine. Ji-hyeon expresses her feelings to Yoo-sik, and Min-kyung fin…
E5Restless NightBaek-hyun’s ex is revealed, and their story is shared. With Hyeon-ji as a new addition, the tension in the air at the house changes. Baek-hyun has a hard time falling asleep with his ex added to the house, and he become…
E6The Speed of Breakup Depends on the PersonThe participants go out on a date during the day, and everyone seems to like meeting new people. However, when the night comes, they all become emotional and feel confused. The participants are now allowed to reveal the…
E7The Door OpensThe Chatting Room is open again, and the female participants are invited. They wonder who invited them, and it turns out to be an unexpected twist. Meanwhile, the participants become more conscious about their exes as a…
E8Insincere LoveThe new catfish, Jae-hyung, joins the house and meets everyone. The male residents feel somewhat threatened by his confidence. The next day, the Group Talking Room, where the male residents can ask questions to the fema…
E9Misunderstanding is Easy, But Understanding is HardThe male residents must choose a keyword from the Group Talking Room. They will go on a date with different female residents according to the keywords they pick. At night, the exes get busy clearing misunderstandings an…
E10Our Nights Shine Brighter Than the DayThe residents’ ages are revealed, and this changes how they feel about each other subtly. Once again, the drinking goes on late into the night, and some get angry about their exes’ behaviours. The next day, the Ex Room …
E11You, Back ThenThe time has arrived again. With the Ex Room open today, some of them decide to check out the Ex Room, whereas the others enter the room because their Exes don’t choose to do so. Some feel more conflicted after seeing t…
E12A Different TimeShin Seung-yong, a new male participant, joins the show. His manly look and full package make the ladies’ hearts flutter, and other men alert. With a newcomer, some start opening their hearts. What changes will be broug…
E13Leaving This Night In SeoulOn the night before travelling to Japan, some feel excited about the trip with their partner, whereas some feel conflicted and their relationships are strangely tangled. As the morning of their date in Japan comes, they…
E14X’s XThe trip in Japan continues. As they decided to let go of old feelings and travel with a fresh mindset, everyone's excitement doubled in Japan. Meanwhile, the exes will finally be revealed. Everyone will get to know who…
E15The Time I Thought I Had ForgottenThe doorbell rang again before the confusion died down. On the first day in Kamakura, a letter arrived. The men have to recommend a date for their exes. And starting from this episode, the receiver will get the sender's…
E16Farewell Caught in My ThroatNow that the exes are revealed, the atmosphere has changed. For some, it gets more comfortable as they can follow their hearts without hiding anything. For others, it gets more complicated as the relationships are tangl…
E17A Way To Keep You With MeAs their dates in Japan continue, some relationships deepen, and the direction of their hearts gradually becomes clearer. Those who hope to reunite with their exes show diverse reactions such as suggesting renewed promi…
E18A Sleepless Night, and the Rain FallsHyun-ji and Yoo-sik go out on a casual date while everyone else stays home. Min-kyung talks to Yoo-sik after he gets back, hoping to hear that there’s still a chance for them to get back together. For the next date, the…
E19A Summer Night of RegretAn envelope has arrived at the Kamakura House. The participants will play truth or dare for the final decision. One person can ask up to three questions. But they can't ask obvious questions regarding the final decision…
E20So, It's Goodbye, ThenTime is ticking until the final decision day. The participants go on a date with their ex with heavy hearts, thinking that might be their last date. After the date with their ex, each of them can choose one person, excl…
E21Again, NeverAfter all the emotional ups and downs, they are finally reaching the end of the journey, and EXchange 4 is left with the final decision. Ex-lovers who broke up for their own reasons came together. New moments emerged fr…
E22The Untold StoryEXchange 4 will unleash the hidden charms of residents that couldn’t be seen anywhere else! Although this season of EXchange is over, for the hardcore fans who haven't yet moved on from the show and to satisfy fans’ and…