Lyrics: Hono
Composition: DEKU
Arrangement: Fukuyama Saori
Vocals: Sora (Maruyama Miki), Sham (Fukuyama Saori), Marie Poppo (Maruyama Miki, track 5)
Album was composed by DEKU and was released on June 25, 2019. Soundtrack consists of 5 tracks tracks with duration over about 20 minutes. Album was released by Fruitbat Factory.
CD 1
| 1 | Ultimate Weapon Girl | 04:20 | |
| 2 | Ultimate Weapon Girl (Sora Version) | 04:20 | |
| 3 | Ultimate Weapon Girl (Sham Version) | 04:20 | |
| 4 | Ultimate Weapon Girl (Instrumental) | 04:20 | |
| 5 | Ultimate Weapon Girl (Bonus Track) | 01:47 | |
