At the end of the 21st century, humanity was forced to escape the planet that was under attack by the mysterious mechanical lifeforms called Weiss. Half a century to the galaxy, the omnipotent artificial intelligence "Alice" discover emissions. Young women who are able to use it are called "Actresses". The battle against Weiss changed completely and brought peace again. One day, the organization Aegis requested a combat simulation system for a demonstrative test between "CS" and Actresses.