Seven years after the catastrophic descent of the Black Dragon Acnologia on Tenrou Island, the legendary guild Fairy Tail lies in ruins. Once the pride of Fiore, it has been reduced to a shadow of its former self, struggling to survive with only a handful of dedicated mages while the arrogant Sabertooth guild reigns supreme. When the missing Tenrou group finally returns from their time-sealed slumber, they are crushed by the devastation wrought in their absence.

Natsu Dragneel, consumed by guilt and rage over his inability to protect his family, vows that sheer strength could have prevented this tragedy. Suddenly, a mysterious phenomenon envelops the entire continent of Ishgar. A colossal split-screen appears in the sky, accompanied by a system voice announcing a global 'Comparison Live Stream.'

Viewers from every corner of the world are invited to witness parallel realities and answer quizzes for incredible rewards, ranging from extended lifespans to lost magic. As the first comparison begins, focusing on two vastly different versions of the Fire Dragon Slayer, the fate of Fairy Tail hangs in the balance. Will witnessing an alternate Natsu who truly fulfills his destiny as a dragon slayer ignite the spark needed to restore their glory?