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A tenuous synergistic agreement between two remote civilizations threatens to crumble when a stubborn prince breaks a longstanding pact in director Kunihiko Yuyama's poignant tale of war and hope. The inhabitants of Lunaria may not have much in the way of technology, but their strong connection with the Earth does provide them with one essential natural resource -- water. Though their neighbors in the Shadowlands lack the life-giving resource, they do have a firm grasp on technology. When the two civilizations come to the mutually beneficial agreement that the Shadowlanders will provide technology to the Lunarians in exchange for water, both are satisfied with the deal and an era of peaceful coexistence begins. Years later, the Lunarian prince cuts the water supply to the Shadowlands after declaring that the technology they have provided is obsolete. As war looms on the horizon, a forbidden romance between the Lunarian Prince's daughter Veronica and Rolland, heir to the Shadowlands, continues to flourish. With agents from the Shadowlands struggling to restore their water supply and a mysterious fiend named Lagado scheming to conquer Lunaria, the only hope for peace may reside within the mythical Tree of Life.