The movie is a continuation of the story from the original series that takes place half a year later. The original team joins an alliance to help take back the area around Unato Castle, however things do not go as planned. Will Ikoma and his friends be able to survive, or will they fall to the hordes of Kabane?

Second half of Kengan Ashura.

In the mystical land of Fiore, magic exists as an essential part of everyday life. Countless magic guilds lie at the core of all magical activity, and serve as venues for like-minded mages to band together and take on job requests. Among them, Fairy Tail stands out from the rest as a place of strength, spirit, and family. Lucy Heartfilia is a young mage searching for celestial gate keys, and her dream is to become a full-fledged wizard by joining this famous guild. In her search, she runs into Natsu Dragneel and his partner Happy, who are on a quest to find Natsu's foster father, the dragon Igneel. Upon being tricked by a man, Lucy falls under an abduction attempt, only to be saved by Natsu. To her shock, he reveals that he is a member of Fairy Tail and invites her to join them. There, Lucy meets the guild's strange members, such as the ice wizard Gray Fullbuster and magic swordswoman Erza Scarlet. Together as a family, they battle the forces of evil, help those in need, and gain new friends, all the while enjoying the never-ending adventure that is Fairy Tail. [Written by MAL Rewrite]

The Chosen Children are in shock after the betrayal of Meicoomon, the digital monster who had recently joined their group alongside her human partner, Meiko Mochizuki. Koushirou Izumi is determined to diagnose the infection that took control of Meicoomon. Meanwhile, Takeru Takaishi realizes that his own partner, Patamon, is starting to exhibit alarming symptoms similar to that of other infected Digimon, like Meicoomon.

Just then, the Chosen Children receive a message from the mysterious entity Homeostasis, who informs them that their world is in danger of total destruction—and the Digital World, the home of the Digimon, is too. Homeostasis plans to enact a "Reboot," which will reset all the data that makes up the Digital World and eradicate the infection. However, the Reboot will also erase the memories of all Digimon, including the Childrens' partners. Can the Chosen Children stop Meicoomon before the Reboot becomes necessary, or is this the end of their time together with their Digimon?

[Written by MAL Rewrite]