The game begins with Rush seeing a fight between David's army and monsters. He is recruited by the generals. While investigating, they meet Wagram. After several missions, the group attends the Congress meeting for the leaders of the city-states in Elysion, home to the Ark Remnant (leading to the Sacred Lands) and the Academy, a research institution devoted to study Remnants, where Rush's parents also work. The Conqueror arrives at the Congress, binds the Ark and demands to be given a massive Remnant of the type that each city-state has.The Conqueror rejects the demand and declares war with the support of the "God-Emperor", one of the city rulers.