[Never know] Produced by BAN ESTIN Lyrics by 신지민,유종화 Composed by BAN ESTIN ,신지민,유종화 Arranged by BAN ESTIN Piano by BAN ESTIN Drum, Bass by BAN ESTIN Synthesizer by BAN ESTIN Guitar by 김성주 Chorus by 신지민 Artwork by 정성훈 @jngsnghun Mixed & Mastered by BAN ESTIN