On the outside, Jung Taekwoon's life seemed perfect. He was a rising idol under the stage name Leo, who was fast gaining popularity due to his beautiful voice, handsome looks, and sweet personality. On top of all of that, he had a beautiful girlfriend, who seemed to be a perfect match for him. The reality of the situation, though, was far from perfect.

Wonshik's world is turned upside down when his roommate, Hakyeon, bumps into an old friend.