Somebody ever said that there's always a time limit for everything, but does it include love? Is there an expire date for love? Someday if you are given a chance to make a different in your tasteless life, but the consequences would cost you your life, do you dare to accept the deal? Or 'would you' accept the deal?

Yulti and Taengsic were 2 pair of happy couple, what happen when their friends play prank on them by helping them to register for an exchange lover program? Making the situation worst… What happen when they met their ex-lover there?

Yuri and Minho have been dating each other for 5 years, their relationship is stable and sweet until Yuri was assign to be an undercover …