Humanity has finally reached for the stars, establishing colonies across the solar system. Their expansion seems unstoppable until an unknown force begins obliterating settlements without warning or mercy. Desperate and outgunned, military command makes a calculated gamble: they resurrect Justeen, a weapon of devastating power that vanished seventeen years prior. What emerges is neither machine nor creature but something that defies classification. This being operates on its own logic, following orders only when its interests align with humanity's survival. As Justeen wages war against the encroaching threat, uncomfortable questions surface. Where did this entity come from? Why was it locked away? And can humanity actually control something this powerful, or have they simply released a different kind of catastrophe? The OVA balances visceral mecha combat with genuine dread, creating a claustrophobic atmosphere where victory might cost more than defeat. It's a tense ride that doesn't waste time on exposition, trusting viewers to piece together what Justeen really is while the battle rages.