Almost ten years after their divorce, Jung Jungkook and Kim Taehyun met again in a hospital.
Each one has a defined life already: Jungkook in Japan with his daughter, Jung Mina, and Taehyung in Korea with his daughter, Kim Jinhee. However, as fate would have had it, a nasty accident leave their twins in critical condition, and they are now stuck trying to tolerate each other for the sake of their girls.