Dennou Sentai Voogie's★Angel

A century after the invaders known as S.E. seized Earth’s surface, humanity survives in hidden underwater cities. Its hopes of reclaiming the planet rest on five cybernetically enhanced girls: Voogie, Rebecca, Shiori, Merrybell, and Midi.

The Angels launch attacks against the occupying forces, but the changes that made them capable fighters have left another struggle within them. Lost memories and the circumstances of their transformation begin intruding on their missions. Facing an enemy that has already defeated humanity once, the girls must confront both the military threat and the question of who they were before becoming weapons.