Hanbin and Yoonhae had been friends since they entered Pre-School. Yoonhae's a bubbly person that could make people around her smile and turn their bad day into a good one. While Hanbin, he had a difficult time making friends. He's a shy person. Both complement each other very well. We could find out how they complement each other through this story.

Bobby and Jimin had been together for a year. However, it wasn't going the way Jimin had imagined. What will happened to both of them?