Трэклист:

OP Single "KINGS" (angela)

1. KINGS
2. THE DARK
3. KINGS (inst)
4. THE DARK (inst)

ED Single "Tsumetai Heya, Hitori" (Mikako Komatsu)

1. Tsumetai Heya, Hitori
2. 夏至の果実
3. Tsumetai Heya, Hitori (inst)
4. 夏至の果実 (inst)

Insert Single "Itsuka no Zero kara" (angela)

1. Itsuka no Zero kara (Eps #02)
2. 境界線Set me free

K-Project Bonus CD 1: Character Song Vol.1

1. HAPPY DAYS? by Yashiro Isana（CV：Daisuke Namikawa） (Eps #01)
2. Legend Daidokoro by Kuroh Yatogami（CV：Daisuke Ono） (Eps #02)
3. Neko no Uta by Neko（CV：Mikako Komatsu） (Eps #03/06)
4. Wild Crow by Misaki Yata（CV：Jun Fukuyama） (Eps #05)
5. Ao no Eishi by Reisi Munakata（CV：Tomokazu Sugita） (Eps #07)
6. Heart in Blue by Seri Awashima（CV：Miyuki Sawashiro） (Eps #08)
7. Honoo no Katachi by Anna Kushina（CV：Yui Horie） (Eps #09)

K-Project Bonus CD 2: Original Soundtrack 1

1. K'S Theme
2. Suoh Mikoto
3. IKari
4. DarK PinK SKy
5. Kitsch
6. Kitten
7. Kushina Anna
8. KnocK-on Effect
9. Knife
10. Shiro#3
11. At SKool #1
12. MunaKata Reisi
13. Karma
14. Namida No ShizuKu
15. Killer
16. Yata MisaKi
17. Friendship
18. Kagerou
19. Kiss Of Death
20. TosuKa Tatara

K-Project Bonus CD 3: Original Soundtrack II

1. Yatogami Kuroh
2. Smile
3. Kusanagi Izumo
4. At SKool #2
5. Awashima Seri
6. Adolf K Weismann
7. Shiro #2
8. Kolorless King
9. Key
10. Knight
11. HiKari
12. Knell
13. KinKy Man
14. KoKujoji DaiKaKu
15. Kaos
16. Battle MusiK #1
17. Kindling
18. Battle MusiK #2
19. Knot
20. Shiro #1
21. K’s Theme ~Piano ver~

K-Project Bonus CD 7: Character Song Vol.2

1. I beg your hate by Saruhiko Fushimi（CV: Mamoru Miyano）
2. Circle of Friends by Tatara Totsuka（CV: Yuuki Kaji） (ED №2)
3. stand in the wilderness ~Portry Reading ver.~ by Mikoto Suoh（CV: Kenjiro Tsuda）
4. Tales of Black dog by Kuroh Yatogami（CV：Daisuke Ono）
5. Tales of Hermit - by Yashiro Isana（CV：Daisuke Namikawa）
6. Requiem of Red by Anna Kushina（CV：Yui Horie）feat. the Red Clansmen (Eps #13)
7. KINGS （TVサイズ）by angale
8. 冷たい部屋、一人 （TVサイズ）by Mikako Komatsu

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angela - Requiem of Red (из альбома "ZERO" [2013.04.24])
angela - To be with U! (из альбома "ZERO" [2013.04.24]) (ED №3)

Opening

Ending