2017 a.t.b. The Euro Universe (E.U.) allied nations are being invaded by the overwhelming forces of the Holy Britannian Empire. On the verge of defeat, the E.U. army forms a special division known as “W-O″. They recklessly plunge into a battlefield, where the survival rate is extremely low, at about 5% only. They fight for their freedom, and for a “home” to which they can return.