Taeyeon was a girl who was always happy and cheerful until her parents died in a car accident. It was a stormy night and it was heavily raining, Taeyeon parents were on a bridge and it was pouring rain and Taeyeon dad couldn't see anything and then.... boom... that was it... Another car crashed into them. Taeyeon hated rain, she wouldn't let no one talk to her except for her best friend. One day during school, a new person came into the school and was a spy. He was given a mission to make Taeyeon happy again. Will his mission succeed? or Will Taeyeon block him out of her life like she does to everyone else?