Yi Young has insomnia due to her past. She meets Yoon, a tone-deaf pianist who puts her to sleep.
Yi Young has her bad days. She encounters a stranger at the convenience store in her neighborhood.
Yi Young asks a mysterious man from the convenience store to sing her a song through the phone.
Yi Young decides to formulate a contract with the man from the convenience store. She now gets to sleep.
Yi Young's first day at the orchestra is accompanied by rumors about a displeasing relationship with Ju Wan.
Yi Young wakes up at the hospital. She heads straight for the orchestra and is faced with depressing news.
Ju Wan is requested to allow Yi Young to work for him at the orchestra. She is now his assistant.
