The Valkyrie's are the mechanized suits that Valkyrie Pilots transform into. Using their power to fight the Nebula that constantly threaten to invade our world.
But that's not the only concern of everyday citizens, the tensions between the Federation and Space Alliance Systems are at an all time high since the conclusion of the Valkyrie Wars.
Hazer whom was once a Valkyrie Pilot has since lost the ability to transform into a Valkyrie. He now lives a life normality with his family.
But when that peace is threatened Armgier approaches him once again to become a Valkyrie Pilot to join the fight.