스쳐가는 맘이라도 우린 잡아야 해 [Credit] 1. butterfly Composed by 은비 (EunBii), SIM2, HS Lyrics by 은비 (EunBii) Arranged by SIM2, HS, 유재민 Bass, Piano, Drum, Synth by SIM2 Guitar by HS Main, Chorus Vocal by 은비 (EunBii) Mixed & Mastered by 유재민 Art by Ju Hee