Junmyeon is upset. He just turned twenty one and his parents decide then to tell him that he's to marry a stranger whom he's never met before. Of course he's unhappy about having to do such a thing. But he has no choice but to go through with it. So he does, but that didn't mean that he'd do it nicely.

Junmyeon breaks up with Yixing because he thinks he's just not good enough. Yixing thinks he's the world's biggest fool and has decided that he will never allow Junmyeon to make his own decisions ever again. 

Zhang Yixing doesn't like the new boy that just came to work in his cafe. He doesn't even understand why Wufan insisted on hiring him in the first place. To top it all off, Kim Junmyeon is a thief. He stole something from Yixing and Yixing wants it back. 

Zhang Yixing is a member of EXO M and Kim Junmyeon is a member of EXO K. It is inevitable that one group works in Korea and the other works in China. The separation is almost unbearable. Thus, begins the late night, long distance calls.