Musha Aleste : Full Metal Fighter Ellinor

Dire51, a supercomputer crafted to control a space colony, goes rogue and sends its attack robots, led by mech Big Asia., to destroy mankind. A team of fighters in giant mechs try to stop it, but all but one, Ellinor (Terri in the US version), are killed, leaving Ellinor to save humanity from destruction on his own.