1914, Cavatara Empire, the wall of Vacafa is guarded by Cavataran Soldiers, suddenly the emergency alarm breaks out, there's a war. Zaraghi soldiers came to invade the Boku Valley, therefore, The Cavataran general, General Arban get the soldiers in the meeting room Arban: "Alright here's the plan, the Zaraghis might flank us at the right so we send you guys to the right side. If they flank us to the left, you go to the left, if they plan to break the door, send the artillery." The battle of the Boku Valley has started. Soldiers come to the right side, left side and the artillerymen goes to the door.