It is the year 1997, and aliens have taken over most of Eurasia.  Humanity fights back with giant robots called TSFs, but is gradually losing ground to endless alien armies.  Now the aliens are advancing on Japan, and Yui Takamura, a trainee at the Imperial Guard Academy, will have to battle them...
we've been dragged back into the ice age...
nosotros, los humanos, hemos vivido
 en un frío y amargo mundo...
nosotros, los humanos, hemos vivido 
 en un frío y amargo mundo...