"One day, I'm gonna kill you. I promise." "I need you like a heart needs a beat."   "I lied when I said I love you." "Stop lying to me."  

Am I tired of being alone?

Hayi's random letters to Hanbin.

 Everything changed when Krystal Jung, a warm-hearted yet cold girl, met Kai Kim, the not so bad boy.

Of empty spaces and broken vows, fate decided to bring them together.

An old notebook in the town library caught Kang Joo Hyun’s attention.