[Credits] Produced by 김철환 All Composed & Lyrics By 김철환 Arranged by 김철환 Drum : 김선중 Bass, Contrabass : 이상진 Piano & Keyboard : 김철환 Guitar : 유웅렬 Cello : 강찬욱 Violin, Viola : 박용은 Chorus : 강성호,안성준 Recording studio : Sum Sound Recording & Mixing Engineer : 이동영 Mastering Engineer : 이동영 Design by : 박광기