While visiting the National Library, junior-high students Miaka Yuuki and Yui Hongo are transported into the world of a mysterious book set in ancient China, titled "The Universe of The Four Gods." Miaka suddenly finds herself responsible for being the priestess of Suzaku and must locate all of her celestial warriors in order to summon Suzaku and make three wishes. Meanwhile, the enemy nation of the god Seiryuu has influenced Yui to become the priestess of Seiryuu. As adversaries, the former best friends begin a prolonged struggle to summon their respective gods and fulfill their wishes...