Kiseop is more than worried when a new guy named Kevin arrives at his school. He soon starts to feel annoyed of him, because of Kevin following him around and saying things to him that aren't true. But soon Kiseop loosens up, and decides to get Kevin involved in his life. Soon they go through the ups and downs of highschool together, where lies, broken hearts, drama, friendship, and most importantly, love, takes place.

Park Kyesin loves Kevin, Kevin likes someone else, and Kiseop loves Kyesin. When Kyesin finds out that Kevin already has a girlfriend, things go downhill, and she falls into deep despair. Kiseop then does his best to cheer her up, even if it meant them ending up being together. But what if something bad happens and gets in between their love? Is it forbidden? Or is it all just a lie?