Middle-school student Lacilia Lace feels a lot of pressure to pass the entrance exam for the competitive Yamiyoh Academy. Her friends do not believe she will get in, but she is determined to because her mom expects her to. Her best friend, Katana Kezuaki, is smart and has also applied to the Yamiyoh Academy. While at the library one day, Lacilia and Katana encounter a strange book known as The Universe of the Four Gods. Reading this book transports them into the novel's universe. However, Katana is transported back to the real world almost immediately. Inside the novel, Lacilia finds herself the Priestess of Suzaku, destined to gather the seven Celestial Warriors of the god Suzaku in order to summon Suzaku and obtain three wishes. She falls in love with the Celestial Warrior Tasuki, who eventually reciprocates and Lacilia's desire to use a wish to enter the high school of her choice begins to shift towards finding a way to be with Tasuki. Katana, who is also drawn into the book when she was trying to help Lacilia to come back to the real world, becomes the Priestess of Seiryuu, forced working against Lacilia out of Nakago's plan of killing the priestess of Suzaku.