My name is Midou Maria. But a year ago, my name was Ichinose Rei. This Ichinose Rei was a special existence. The worker force for Ichinose Group's enterprise comprise of nearly half of the corporate town, Segawa. So Rei was that Ichinose family's heir.

But that brilliant future was abruptly snatched away. Given a new name, gender and three hundred million, Rei was banished from Ichinose. Even though he or she, desires revenge, but what can he do all alone? With death as his resolution, Maria roamed around the streets, only to land him in a ruin. In there, there is a community... It's the secret base for juveniles!

Together with Yuuki Azusa and Tobe Yuuna, this is the start of a story on mutiny!!"