Jae Young's rare career opportunity to work in a prestigious company abroad casts uncertainty over their relationship. Jae Young and Sang Woo are now faced with an ultimate dilemma.
Sang Woo decided to undergo restitution on the situation. While working as a two-man-team in developing a new game, their feelings towards each other is becoming more palpable.
Amid subtle changes, Jae Young stepped out from the shoes of a villain. Sang Woo remains dubious on Jae Young's change. Eventually, Sang Woo detected a 'semantic error' in his used-to-be tranquil and systematic life.
Sang Woo, being confused, is eager to put things back to normal. Eventually, Jae Young decided to retract himself from Sang Woo's life. But to Sang Woo dismay, the outcome is unsatisfactory.
Sang Woo retaliated in his own way. Jae Young slowly derailed from his original mischievous plan towards Sang Woo. A single dart landed their relationship at a turning point.