"Wait, lets make a deal. When we both turn 27, and we haven't fallen in love with anyone else yet, let's get married." "What? Why? That's stupid," Changbin laughed almost crudely. "We wouldn't even keep in contact anymore by then." "Just promise me this one last thing before you leave at least, please Changbin..." "Fine Felix." - Seo Changbin and Lee Felix are high school lovers. They've been dating for almost 2 years until Felix gets the news that his boyfriend is leaving for Japan due to his dad's work. The pair are forced to break up as Changbin wouldn't be able to handle a long distance relationship. So Felix's one last request for him is a marriage pact.