In which Jongin is a successful businessman who is constantly racing against time towards his future, Baekhyun is a stubborn, unrelenting musician who has forgotten what home means to him, and Yunseul is a troubled therapist who knows more about her work than her own heart. In the modern world,

Three long years.    They had started out on the wrong foot, and Baekhyun had been stubborn and persistent in making things right.    But it's been three years…   

  He never meant to let go.   She fought hard, but when the string is cut, how do you keep the balloon from wandering away?