Yeri have been recieving love letters back when she was still in highschool. She wants to meet and talk to Sunny. Sunny's still a stranger but for her he's not. At first, she was scared who gives letters to her every once a week. But as time passes by she got comfortable and used to it. She know she was safe with him. They communicate through letters. She doesn't know anything about Sunny aside his first name. But she can say that he's really sweet and gentle. Until one day Sunny decided he wants to meet Yeri. Who could Sunny be?