Rakudai Kenja no Gakuin Musou follows Ephtal, the Sage of Wind, a human reincarnated from modern Earth into a world where magic is real. Determined to devote his life to mastering sorcery, he pours everything into that pursuit, only to discover that he has no talent for magic at all and eventually dies in anguish after a life of frustration.
His story does not end there. Ephtal is born again 400 years later, still bearing the same name and retaining the knowledge and power he accumulated before. With his resolve restored, he once more sets his sights on the peak of magic, ready to continue the climb he was denied in his first life.
Instead, he finds a world in which magic has declined to the point that powerful spells are now rare. In this age of diminished sorcery, the talentless mage who once stood at the bottom is suddenly unmatched. From powerlessness to supremacy, Ephtal's second chance becomes the beginning of a new ascent toward the top of magic.