영원히 돌아갈 것 같았어 아니라 더 아픈거야 [Credit] 1. 회전목마 (Feat. 이을 (E.ul)) Composed by SIM2, 이을 (E.ul), HS Lyrics by 이을 (E.ul) Arranged by SIM2, HS, 유재민 String, Piano, Drum, Synth, Bass by SIM2 Guitar by HS Main Vocal by 이을 (E.ul) Chorus Vocal by 이을 (E.ul) Recorded by 이을 (E.ul) Main Vocal Tune by 이을 (E.ul) Chorus Vocal Tune by 이을 (E.ul) Mixed & Mastered by 유재민 Art by neponay