The inhabitants of the planet Amuneria and the colonists of the planet Blazar fought in a great war in the Osu Quadrant. The Amunerians developed a doomsday weapon called the All Nothing and used it on the colonists of Blazar; the use of the All Nothing destroyed planet Blazar. Once Blazar was destroyed, a race of mechanized creatures called the Thiima appeared in the Osu Quadrant and began attacking the Amunerians. The fight between the Thiima and the Amunerians lasted so long that the Amunerians developed space fighters combining technology of theirs and the Thiima called the Silverhawks piloted by aces Sameluck and Lutia to wield great space weaponry. The Silverhawk's mission is to drive the Thiima away from the Osu Quadrant and destroy their base of operations, even if it means exhausting each ship's power to their limit.