While celebrating their last night together, high school graduates and best friends Jo and Raissa stumble upon a mysterious portal that transports them to the fantastical island of Nakali. When they discover that the memories of their entire friendship are the price for returning home, Jo and Raissa must race to find a way to leave the island before they forget each other forever.
Miss Kobayashi, Tohru, Kanna, and Iruru's peaceful lives are shattered when Kanna's father, Kimun Kamui, leader of the Chaos Forces, arrives and forces her to return to the Dragon World to fix a past mistake. With a war brewing between Chaos and Harmony, Kanna must find a way to unite the two worlds but is torn between her loyalty to her friends and her father's demands. Miss Kobayashi, however, refuses to let her go and tries to mend Kanna and Kamui's broken bond. As dragons clash, Iruru uncovers a hidden force manipulating the war. Can they stop the war before it consumes both worlds?