Child, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Wei, Monkey, Rooster, Dog, Pig. Twelve ethnic groups with special abilities are fighting a war for supremacy of the country. An emperor, worried about endless wars, declares a 5 vs. 5 proxy war or ``festival'' between the warriors and ``beast swordsmen'' of each race. Ibusuki, the princess of the weakest tribe, the Rabbit, meets Hinodemaru, the legendary lion, while searching for a beast swordsman to whom she can entrust the fate of her people. That encounter was the start of an upset! Zodiac survival fantasy, opening!!