A regular college student, Tarou's life takes a wild turn when a peculiar elderly wizard transports him to a different realm. Blessed with an extraordinary magic level 8 million times greater than the norm, Tarou revives the old man who triggered his journey, albeit as a frog. Thus commences the bizarre escapades of a boy with unfathomable magical prowess and Kawazu, the once-mighty magician now reborn as an amphibian.