Minho and Key have a dysfunctional relationship, they argue and are get on the other’s nerves. They had been dating since high school but moving in together they find they are complete opposites. Both however, won’t break up with the other.

Jonghyun and Taemin met in their college music program, they hit it off and are happily dating. Though as time progresses Jonghyun finds his feelings for Taemin fading. Not having the heart to tell Taemin, He simply pays less and less attention to his younger other half.

Minho and Jonghyun both notice these problems and one night wish on the same star. A wish that changes their lives and love interests.