The Chaos Knights are an elite group of 10 powerful assassins governed by one ruler. Their job is to keep peace in the world by stopping wars and assassinating those who will no doubt cause major disruptions throughout the world and pose a threat towards world peace. But as their old leader, Glen, died, so did his dreams of a perfect justice. The Chaos Knight's new leader, Gaimon, now rules over the world with his warped sense of justice; kill anyone who commits any crime, no matter how minuscule the crime may be. Alexa, the tenth Chaos Knight, breaks free from Gaimon's wretched chains and now plans to fight against him and stop this dark justice. But how will she be able to stop all the Chaos Knights and what was the real reason she turned against Gaimon?