Jung Ki Sub is Kim Jin Woo's slacker friend - and secret crush. So, when Ki Sub asks to crash at his place, his heart tingles to be near him every day. But as the short stay turns into permanent mooch, how long can Jin Woo keep his true feelings under wraps and hold back from confessing?

Cha Soo-Hyuk is focused only on his survival, without any grand goals. He reunites with Lee Yoon-dae, who he was very close with. Yoon-Dae was living with his girlfriend but now has nowhere to go. They end up living together.

The drama depicts Kim Min Jae, a transfer student majoring in Practical Music and working part-time at the library, and Lee Kyu Ho, a Taekwondo major who helped him. Since their first meeting, the two have become entangled and closer, leading them to develop a romantic relationship.