Aliens called BETA (Beings of the Extra Terrestrial origin which is Adversary of human race) have invaded and mankind fights back against... More >
Aliens called BETA (Beings of the Extra Terrestrial origin which is Adversary of human race) have invaded and mankind fights back against the alien aggressors with giant robots called Senjutsuhokousentouki (Tactical Surface Fighter), as almost all conventional weapons are ineffective.

Yuuya rescues Yui from the hangar, and tries to escape with the core for the EM Radiation Cannon. But all the BETA suddenly start heading towards them, and they have to make a quick escape.