Kasuga Rito harbored a deep-seated desire to utilize his latent powers for altruistic purposes, but unlocking his magical potential was the first step. Enrolled as a sophomore at Rezon Institute, a prestigious school tailored for individuals with extraordinary magical gifts, Rito endeavors to accumulate 100 points to ascend from the 'Common' to 'Starlight' class, a feat that has eluded him despite being dubbed 'the Eternal 99'. Determined to break this stagnation, he orchestrates a scheme to befriend Scuse Fontana, a transient exchange student from the Demon World, in hopes of procuring some otherworldly sustenance rumored to enhance one's abilities. Sneaking into a welcome party held in her honor, Rito discovers her absence, dampening his spirits as he exits the venue swiftly. However, fate takes an unexpected turn when he encounters a diminutive dragon in the alley behind the hotel, which inexplicably latches onto his head, setting the stage for unforeseen adventures.