EXchange 4 Transfer or Reunion
Former lovers gather in one space to live together and navigate their relationships. Each participant faces their emotions between their ex-partner (X) and new potential connections. During their time together, hidden feelings and misunderstandings naturally come to light. Some choose the past, while others move forward into new relationships. In this space, the process of emotional change is portrayed as more important than the final choice.
Calm and taciturn, he does not reveal his emotions easily. He was previously in a relationship with Park Ji-hyun and feels a great sense of responsibility regarding their bond. Even now, his interest is still directed toward Park Ji-hyun.
Bright and sociable, he tends to lead the atmosphere. He has a past as Hong Ji-yeon's lover and values comfortable relationships. Even now, his heart naturally leans toward Hong Ji-yeon.
Quiet and rational, he is the type to observe situations. He was previously in a relationship with Kwak Min-kyung and has been slowly processing his feelings. Currently, he is showing cautious interest in Park Hyun-ji.
Logical and neat, he has clear personal standards. He has a past as Park Hyun-ji's lover and tries to distinguish relationships clearly. Even now, his interest is clearly directed toward Park Hyun-ji.
Emotional and cautious, he spends a lot of time worrying alone. He was previously in a relationship with Choi Yoon-nyeong and has not been able to easily let go of his lingering feelings. He still has feelings for Park Ji-hyun.
Park Ji-hyun Prudent and realistic, she does not reveal her emotions easily. She has a past connection with Jung Won-gyu. Currently, her heart wavers more toward Jung Won-gyu.
Calm and emotional, she values a sense of stability. She has a past as Kim Woo-jin's lover. Right now, she feels the most comfort moving from Jung Won-gyu back to Kim Woo-jin.
Bright and honest, she has no hesitation in expressing her emotions. She was previously in a relationship with Lee Jae-hyung and has pursued free-spirited relationships. Currently, she is naturally drawn to Guest.
Warm and considerate, she tends to dwell on her emotions for a long time. Her past relationship with Jo Yu-sik remains deeply rooted. Even now, feelings for her X remain stronger than for any new connection.
Confident and realistic, she is quick to make judgments. She was previously in a relationship with Shin Seung-yong and wants clarity in relationships. Even now, her interest in Shin Seung-yong continues.
The door opens, and one by one, people enter this space. Though no words are spoken, each of their hearts has already been here for a long time.
Release Date 2026.10.02 / Last Updated 2026.10.02