- g.o.d
- Session
- Greg Curtis – keyboard instrument (track 2)
- Seunghwan Yoon – keyboard instrument (track 5)
- Seunghwan Lee – keyboard instrument (track 7, 12)
- Bae Jin-yeol – string arrangement (track 1), keyboard instrument (9)
- Chunho Ham, Stan the Guitarman – other (track 4)
- Wizard – bass guitar (track 2)
- Shin Hyeon-kwon – bass guitar (track 7, 12)
- Yang Hyeon, Bang Bang-ho, Park Jong-hong, Kim Hye-eun, Kim Woo-hyun, Hwang Mi-ryeong – violin
- Soyoung Kim – cello
- Dongha Kim – trumpet
- Choi Yong-yong – trombone
- Jang Hyo-seok – saxophone
- Fill in the Blank, Kristle Murden, Yvonne Williams, Sueanne Carwell – backing vocals
- Jun Ji-hyun – narration (track 4, 10)
- fan god – narration (track 12)
| - Staff
- Hoon-tak Jeong, Hae-ik Jeong – producers
- Park Jin-young – producer, keyboard (track 9)
- g.o.d. – co-producer
- Bang Si-hyuk – co-producer, keyboard (track 9), string arrangement (7, 12)
- Kim Soon-in/Kim Chan-seok (Sidus Studio), Lee Jin-won/Kim Jin-gu (Bay Studio), Namgoong Jin (Wave Studio) – recording
- Dave Pensado (Enterprise Studios) – recording, mixing (track 2, 4)
- Jihoon Seong (King Studio) – mixing
- Lim Chang-deok (Booming Studio) – mixing (track 7)
- Eddy Schreyer (Oasis Mastering Studio) – mastering
- Park Pil-won, Park Seong-jun, Kim Bo-hyung – managers
- Hyun-kyung Hwang, Mi-ra Jeong – promotion
- Andy Yoo (Jaedeok Yoo) – art and style director
- Eun-jin Kim, Seong-jin Kwon, Hyun-ha Lee, Ae-seon Seol – stylists
- Sidus – executive producer
- Go Young-jun, Han Jae-hoon – photography
- Jiyeon Kim, Heesu Byun – album design
- Myungjin Art – printing
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