In the distant future, human civilization has entered an era of advanced mechanization. Colossal futuristic cities rise from the desolate landscape, where technology and warfare have completely reshaped the world order.
A sudden crisis engulfs the city, sparking a life-and-death struggle between warriors clad in mechanized armor and mysterious creatures with black wings. As the technological might—once humanity's greatest source of pride—confronts a formidable and unknown enemy, a young man finds himself swept into this war that will determine the fate of mankind.