왜 너만 몰라? [Credit] Produced by hayawn(하얀) Composed by hayawn Lyrics by hayawn, DANI Arranged by hayawn Vocal by 그_냥 Chorus by 그_냥 Guitar by 김의주 Mixed by 김보종 @ omgsound Mastered by 권남우 @ 821 Sound Album Artwork by 홍다혜 @fox.x_y