While on a mission to find and defeat a troublesome mage, several members of the Fairy Tail guild are split up in an unfamiliar town. At the same time, Haru, Elie, and the rest of their group are also separated. In a fortunate turn of events, Elie runs into Lucy and Happy, who are looking for Natsu. Meanwhile, Haru stumbles upon Natsu, who is struggling with motion sickness. Although she seems friendly, Elie matches the description of the troublemaker that the Fairy Tail members were assigned to locate. To make matters worse, Natsu learns of Haru's relationship with her and suspects them to be accomplices.

In this crossover between two popular series, Fairy Tail x Rave follows the two groups as they discover their similarities with each other. As the miscommunications add up, they are pitted against one another in a heated clash of powers, but will have to work together against a common foe.