Description: The anime's story is set in a prosperous city named Russell City. Even as the city celebrates its success, a conspiracy that threatens to shake its world has been set in motion. A man named Sword is the first to hear the earliest stirrings of the plot, and throws himself into a shadow war in order to expose it. His only clue is the keyword "El Dorado." He meets Sophie, a woman searching for her older brother who left her with only a message with the same word "El Dorado." With Sword having also lost his younger sister in the past, both are drawn together by the word, and work together to find out its meaning.Anime News Network