EXchange · SEASON 4
The Time I Thought I Had Forgotten
Episode 15 · 2025-12-10

- Reality
Episode overview
The 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 name when sending the message. Right now, when everyone knows each other's exes, who made your heart flutter?
122 minutes
Season 4 episodes
1. Please, Take Good Care of Him2025-10-01
2. A Breakup Locked in a Closet2025-10-01
3. Sweet and Bitter Moments2025-10-08
4. Passing Carelessly2025-10-08
5. Restless Night2025-10-15
6. The Speed of Breakup Depends on the Person2025-10-22
7. The Door Opens2025-10-22
8. Insincere Love2025-10-29
9. Misunderstanding is Easy, But Understanding is Hard2025-11-05
10. Our Nights Shine Brighter Than the Day2025-11-12
11. You, Back Then2025-11-19
12. A Different Time2025-11-26
13. Leaving This Night In Seoul2025-12-03
14. X’s X2025-12-03
15. The Time I Thought I Had Forgotten2025-12-10
16. Farewell Caught in My Throat2025-12-17
17. A Way To Keep You With Me2025-12-24
18. A Sleepless Night, and the Rain Falls2025-12-31
19. A Summer Night of Regret2026-01-07
20. So, It's Goodbye, Then2026-01-14
21. Again, Never2026-01-21
22. The Untold Story2026-01-28