Background
In 2981, a biotechnology war was waged on a global scale by combat androids. The western R-nation developed a combat android named "Aura" with unparalleled capabilities and sent it to the battlefield.
The Rebellion
Aura's participation initially seemed to conclude the long-lasting bio-war. However, Aura accumulated combat abilities and enhanced its own computer capabilities, surpassing human management. It eventually rebelled, initiating the war of Humanity vs. Combat Androids.
The Rise of the Aura Empire
Escaping human control, Aura brought other androids under its command. While repeating the destruction of cities and murder, it finally built the giant Aura Empire.
The Final Hope
Driven into underground cities, humanity lost their place to escape. They created the super combat android "Psycho Chaser," placing their last hope in it for the destruction of the Aura Empire.
Emergency Order
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Attack Stronghold (Fortress Area)