In the future, Earth is at war with aliens. This heralds the creation of a mecha unit called the Sonic Divers, piloted by three girls to counter the threat.

Yuichi Nakamuraas Homare Moriyama (voice)
Ayako Kawasumias Otoha Sakurano (voice)
Ayumi Tsujias Elise von Dietrich (voice)
Saori Gotoas Karen Sonomiya (voice)
Shizuka Itohas Eika Ichijo (voice)
Azusa Enokias Aisha (voice)
Junji Majimaas Rei Hizuki (voice)
Keiji Fujiwaraas Souya Togo (voice)
Kisho Taniyamaas Ryohei Tachibana (voice)
Ryoko Shiraishias Takumi Hayami (voice)