Released at ARIA Winter Festival 2017 / S Winter Festival 2017.
Music by Noriyasu Agematsu
"Legame Eterno"
Vocal: Megu Sakuragawa
Composer: Noriyasu Agematsu (Elements Garden)
Arranger: Ryutaro Fujinaga (Elements Garden)
Lyricist: Asuka Oda (Elements Garden)
Album was composed by Noriyasu Agematsu and was released on December 29, 2017. Soundtrack consists of 37 tracks tracks with duration over . Album was released by Aria Entertainment.
CD 1
| 1 | Prologue | | |
| 2 | Pra:ludium | | |
| 3 | Kingdom | | |
| 4 | Arena | | |
| 5 | Aussenwelt | | |
| 6 | Different Dimension | | |
| 7 | Fierce Battle | | |
| 8 | Colosseum | | |
| 9 | Devil War | | |
| 10 | Destruction | | |
| 11 | Result | | |
| 12 | Tragedy | | |
| 13 | Persuasion | | |
| 14 | Devil War II | | |
| 15 | Discomfort | | |
| 16 | Bonds | | |
| 17 | Deep Emotion | | |
| 18 | Prairie | | |
| 19 | Volcano | | |
CD 2
| 1 | Snowy Field | | |
| 2 | Damp Land | | |
| 3 | Ghost Ship | | |
| 4 | God's Tower | | |
| 5 | Devil | | |
| 6 | Desert | | |
| 7 | A Fortress | | |
| 8 | Cave | | |
| 9 | Forest | | |
| 10 | Bastille | | |
| 11 | Ragnarok | | |
| 12 | Remains | | |
| 13 | Dust | | |
| 14 | Diversion | | |
| 15 | Ice Temple | | |
| 16 | Coast | | |
| 17 | Immovable | | |
| 18 | Legame Eterno | | |
