Arthur, a recently orphaned teenage boy, fights against the Domain, a powerful fascistic nation that seeks to dominate the entire continent of Mainland. Driven out of his home by the Domain, Arthur ends up in Nessau, a beautiful city of inventors and art. There, he meets a hot-blooded inventor girl named Lottie, and the two are forced to work together. But even in this distant city, the relentless hand of the Domain is moving, threatening Arthur's...