오존(O3ohn) – jon1 [Credits] Produced, recorded, arranged, mixed by O3ohn Lyrics by O3ohn (Additional Lyrics by JOONIE on Track 3 ‘언제부터’) Mastering by Nahzam Sue @쑥고개스튜디오 lll Bass line ideas from Jung Dayung(ADOY) on Track 3 ‘언제부터’ Album art Styling, Photography - lookooks Logo design - O3ohn Editing - Ryu Hyun Cheol