'잘 가란 말이 내겐 너무 어려워서 잘 지내라는 그 단어가 난 무서워서' [Credit] 1.Good bye (Feat.김뮤지엄 (KIMMUSEUM)) Lyrics by 백식 (Baeksik), 김뮤지엄 (KIMMUSEUM) Composed by 백식 (Baeksik), 김뮤지엄 (KIMMUSEUM) Guitar by 박준형 Piano by 은지 String by ABOPF Bass by 임창권 2.상자속에 Lyrics by 백식 (Baeksik) Composed by 백식 (Baeksik) Guitar by 박준형 Piano by 은지 Arranged by. JEMN Mixed & Mastered by J.cob Artwork by 우정