4 all the bugs in the dark[Credit]Composed by 시온Arranged by 시온Keyboard by 시온Drum by 시온Bass by 시온Guitar by Hanbin KimMixed & mastered by 시온Cover art by EXNA&R: Chad WonManagement: Namho KimMarketing & Show: Yusoo LeePhotography & Videography: SEAN.D.NOExecutive: Mommy Son