The fate of the universe hangs on a single young man, Kamui Shiro, who is tasked with destroying either the Dragons of Earth or the Dragons of Heaven—two rival armies. He alone must choose whether humanity should be wiped out to forge a purified universe, or whether it should be safeguarded to maintain civilization. Two oracles, the sisters Hinoto and Kanoe, foresee the arrival of the Dragons and predict conflicting outcomes. Each sister amasses power and ammunition to ensure her own vision for the future comes to pass. However, neither sister realizes that there is one man who possesses even greater power than the Dragons, and that he will ultimately determine the fate of the earth. Which sister will prevail, and how does Kamui fit into their struggle? The answer to this question will forever affect humanity.