Set two years after the events of Total Eclipse, Japanese-Australian Eishi and former Second Lt. of ABNIA(Anti-BETA Nations Imperial Army), Akihiro Flynn is enlisted onto the renamed CX4 Project by Japanese Second Lt. Takamura Yui. A tale of tragedy, camaraderie, love, duty and vengeance awaits for both the new and returning cast!

Set ten years after the events of The Second Eishi, Akihiro returns to the battlefield in a war-torn aftermath of the Razenack-BETA war. The United Nations has grown more oppressive as a result of the war and those who do not adhere to their rules and laws are silenced. Mechs from: Armored Core and Muv Luv.