Z-Mind

The Earth comes under attack by an alien force and Ayame, Sumire, Renge, and Satsuki are charged with its protection. They'll have to not only master the experimental mobile armour - Z-mind (and it's component robots Z-1, Z-2, and Z-3), but hold down their part-time jobs, all this while keeping their lives... normal! Untrained and uncertain, the three sisters will have to make it up as they go along, but they soon find themselves making battle plans and shouting attack slogans like the most seasoned anime pilots. Will this be enough to stop the forces of evil from conquering the Earth? Whatever happens it's gonna be groovy!