Akira awakens to discover that he has been reincarnated as Adel, the protagonist of the game he finished just before going to sleep. Even stranger, he hasn't arrived during the game's story, but 160 years after its ending. Fortunately, Adel still possesses the overwhelming stats, skills, magic, and equipment he had when Akira completed the game, effectively making him the legendary strongest Hero in this new era. One day, Adel encounters Karina, a student at Twede Magic Academy who is mocked as a hopeless failure because of her apparent lack of magical talent. After being rejected and abandoned by her own family, Karina has nowhere left to turn. Seeing potential in the supposedly talentless girl, Adel takes Karina on as his disciple. Armed with the knowledge and overwhelming abilities of the world's greatest Hero, he begins training her from the ground up with one ambitious objective: transform the academy's biggest failure into its number-one student. Thus begins an otherworld academy fantasy about the strongest Hero raising an underestimated young mage into a powerhouse of her own!