子，丑，寅，卯，辰，巳，午，未，申，酉，戌，亥。特殊能力を持つ12の民族が、国の覇権をかけて戦争を繰り広げていた。終わりなき戦を憂いたある帝は、各民族が擁立する闘士・“獣刀士”による5vs.5の代理戦争・“祭”の開催を宣言する――。最弱の民族・“卯”の姫・指宿は、己が民の命運を託せる獣刀士を探す中で、伝説の民族・“獅子”の日出丸と出会う。その邂逅こそ、番狂わせの狼煙であった！十二支サバイバルファンタジー、開帳!!
The Rat, the Ox, the Tiger, the Rabbit, the Dragon, the Snake, the Horse, the Goat, the Monkey, the Rooster, the Dog, and the Pig. These twelve tribes, each boasting their own special powers, battled for hegemony over the nation until the Emperor, tired of these endless wars, instead proposed a “”festival””—5v5 proxy battles for which each tribe must send a “”beastblade”” to fight on their behalf. Princess Ibusuki of the Rabbit tribe, the weakest clan of all, was searching for her own champion to whom she could entrust the fate of her people when she came upon Hijimaru of the legendary Lion tribe. Little did she know that this encounter would mark the beginning of something far greater! Welcome to the fantastical tale of the zodiac struggle!
