Pre-released at Denkigai Matsuri 2019 SUMMER.

M01 - "Princess Brave! ~Jantaku no Kishi~" Theme Song
Vocal: KOTOKO
Lyrics: Kai
Composition: Tomoyuki Nakazawa
Arrangement: Tomoyuki Nakazawa & Takeshi Ozaki

M02 - "Born Freaks!" Theme Song
Vocal: Yuana Miyazawa
Lyrics: 睦月たたら
Composition/Arrangement: TOKIA

M03 - "Konna Musume ga Itara Boku wa mou...!!" Theme Song
Vocal: NANA
Lyrics: kanoko
Composition: Noriyasu Agematsu
Arrangement: Junpei Fujita

M04 - "Katahane" Theme Song
Vocal/Lyrics: Rita
Composition/Arrangement: Blueberry&Yogurt
M.U.T.S. music studio (Strings, Piano)

M05 - "Toushin Toshi III" Theme Song
Vocal: Rekka Katakiri
Lyrics: Fumya
Composition/Arrangement: Shade

M06 - "Secret Game -KILLER QUEEN- DEPTH EDITION" Ending Theme
Vocal: YuNa
Lyrics: Kusuji Isseki
Composition/Arrangement: Shibayan
Guitar: aBoY KAL

M07 - "Sugar Coat Freaks" Theme Song
Vocal: Megu Sakuragawa
Lyric: RUCCA
Composition/Arrangement: Junpei Fujita (Elements Garden)

M08 - "Irotoridori no Sekai" Theme Song
Vocal: eufonius
Lyrics: riya
Composition/Arrangement: Hajime Kikuchi

M09 - "Pure Girl" Theme Song
Vocal: KOTOKO & Hiromi Sato
Lyrics: KOTOKO
Composition/Arrangement: Junpei Fujita (Elements Garden)

M10 - "Fureraba ~Friend to Lover~" Theme Song
Vocal/Lyrics: Marika
Composition/Arrangement: Meis Clauson
Sound Produced by Angel Note

M11 - "Golden Marriage" Theme Song
Vocal/Lyrics: Duca
Composition/Arrangement: ANZIE

M12 - "Hanasaki Work Spring!" Theme Song
Vocal: Rekka Katakiri & Suzuyu
Lyrics: Uran
Composition/Arrangement: Akihiko Yamaguchi

M13 - "Re:LieF ~DeaR YoU~" Theme Song
Vocal: Hotaru Murasaki
Lyrics/Composition: Sayo Amari [甘利紗陽]

M14 - "Wagamama High Spec OC" Theme Song
Vocal: Haruna Oshima (Sound Drive)
Lyrics: SugarLover (Sound Drive)
Composition/Arrangement: Yuya Saito (Sound Drive)

M15 - "Sora ni Kizanda Parallelogram" Theme Song
Vocal: Nakuru Aitsuki
Lyrics/Composition: meto