Alice Gear Aegis Expansion  

アリス・ギア・アイギス Expansion, 機戰少女Alice Expansion

In ancient times, humans left Earth due to an invasion by a race of robotic aliens known as the Vice. They were forced into a nomadic existence on spacecraft made from fragments of Earth's moon. The future of humanity now rests with Actresses, women who possess the unique ability to control Alice Gears, advanced mechanical suits that can help humans defeat the alien threat.