Donghae and Jessica were friend since elementary school. Their friendship continued until they graduated from their high school. It was not until Donghae had to leave and study in States,leaving Jessica. One day before the departure,Donghae and Jessica took some pictures together but it didn't turn out well. When the day had come,Donghae didn't leave Korea but instead,he cancelled his flight. Jessica who was at that time didn't come to bid farewell to Donghae felt a lot regrets when she knew that Donghae caught up in an accident. She blamed herself for not coming to that airport that day and hated Donghae for not properly confessing his real feelings. Donghae on the other side didn't want to leave Jessica alone as he had to do something for her first. So,he asked for a second chance and borrowed someone's body to use for a while. By borrowing other's body,will Donghae be able to complete his mission? We'll see.