Moon Byulyi, illegal car racer by night, full-time book delivery driver in the day, was lost in SNU, trying to deliver books to the main library. The only problem was there was only a college girl she could ask for directions. Damn, that sweet-looking girl must have tricked her by giving her the wrong directions! Fine, she shall

Moonbyul is Solar's self-declared number 1 fan, Colleague 1. Solar also thinks that Colleague 1 is very important to her. However, things are challenging that status quo and they start to uncover new feelings for each other. Their journey starts from the time Solar and Moonbyul goes to the deserted island. Inspired by real-life events.