Track List:
Part 1
01. Kim Da Yeon (김다연) - Mad World
02. Kim Da Yeon (김다연) - Mad World (Inst.)
Part 2
01. DAEGEON (대건) F.CUZ - It'd Be Laughing (차라리 웃을게)
02. DAEGEON (대건) F.CUZ - It'd Be Laughing (차라리 웃을게) (Inst.)
Part 3
01. Cho Eun (조은) - Shadow
02. Cho Eun (조은) - Shadow (Inst.)
Part 4
01. vvonne (보네) - Hurt me so bad
02. vvonne (보네) - Hurt me so bad (Inst.)
Various Artists
01. Kim Da Yeon (김다연) - Mad World
02. DAEGEON (대건) F.CUZ - It'd Be Laughing (차라리 웃을게)
03. Cho Eun (조은) - Shadow
04. Vvonne (보네) - Hurt Me So Bad
05. Kim Da Yeon (김다연) - Mad World (Inst.)
06. DAEGEON (대건) F.CUZ - It'd Be Laughing (차라리 웃을게) (Inst.)
07. Cho Eun (조은) - Shadow (Inst.)
08. Vvonne (보네) - Hurt Me So Bad (Inst.)
09. Baek Eun Woo (백은우) - Legacy of Quiz
10. Baek Eun Woo (백은우) - Fire Drop
11. Baek Eun Woo (백은우) - ReBooting
12. Baek Eun Woo (백은우) - After Reboot
13. Oh Byung Joo (오병주) - Dragnet
14. Yoo Tae Hwan (유태환) - Mr.Joke
15. Jung Yoo Ri (정유리) - I`m Sorry
16. Jung Yoo Ri (정유리) - For You
Drama Score Music
01. Baek Eun Woo (백은우) - Legacy of Quiz
02. Baek Eun Woo (백은우) - Fire Drop
03. Baek Eun Woo (백은우) - Rebooting
04. Oh Byung Joo (오병주) - Account of Events (사건의 전말)
05. Baek Eun Woo (백은우) - After Reboot
06. Baek Eun Woo (백은우) - Neighbors (옆집사람)
07. Igamin (이가민) - Codas
08. Oh Byung Joo (오병주) - Briefing
09. Yoo Tae Hwan (유태환) - The Puzzle
10. Oh Byung Joo (오병주) - Dragnet
11. Baek Eun Woo (백은우) - To You (그대에게)
12. Yoo Tae Hwan (유태환) - Mr.Joke
13. Baek Eun Woo (백은우) - Virus
14. Baek Eun Woo (백은우) - Zombie
15. Baek Eun Woo (백은우) - Conflict (대립)
16. Jung Yoo Ri (정유리) - I`m Sorry
17. Oh Byung Joo (오병주) - Zombie Attack
18. Jung Yoo Ri (정유리) - For You
19. Baek Eun Woo (백은우) - Brother's Death (동생의 죽음)
20. Igamin (이가민) - A Mysterious Death
21. Igamin (이가민) - Event (사건발생)
22. Oh Byung Joo (오병주) - Clue
23. Yoo Tae Hwan (유태환) - Bifurcation (일타쌍피)
24. Igamin (이가민) - Veritas Care Hospital (베리타스 요양병원)
25. Baek Eun Woo (백은우) - ERA (자책)
26. Baek Eun Woo (백은우) - A Worry of Revolution (혁민의 고민)
27. Baek Eun Woo (백은우) - Field Verification (현장검증)
28. Kim Tae Joon (김태준) - Tell me what you do
29. Yoo Tae Hwan (유태환) - Mr.Joke 2
30. Baek Eun Woo (백은우) - Devil Man