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...
BETA vanguard entering Tsushima Strait 
off the southern tip of the Korean Peninsula.
Las tropas delanteras de BETA
Las tropas delanteras de BETA
A vanguarda dos BETA adentrou as águas do Estreito de Tsushima através do extremo sul da Península da Coreia.