This drama is based on a Japanese manga “カノジョはうそをあいしすぎてる” by Aoki Kotomi which was first published on 2009-May by Cheese! magazine. Kang Han Kyul (Lee Hyun Woo) is a great composer and gets inspired by the voice of others. He hides his identity from other people. Kang Han Kyul then meets Yoon So Rim (Joy). She is a female high school student with a great voice and she falls in love with him.