우연으로 운명이 된 것 같아 [CREDIT] 천천히, 서서히 (Feat. siso(시소)) Composed by 현서 (HYUN SEO), diff Lyrics by 현서 (HYUN SEO), siso (시소) Arranged by diff Piano by diff Drum by diff Midi by programing diff Guitar by 나원호 Bass by diff Vocal Chrous by 현서 (HYUN SEO), RYUL, siso (시소) Mixed & Mastered by 6elong Artwork by Shutmyeyes