Maho Gakuin No Retto Rakuin Sha Ochikobore Tensei Maho Shi, "Joshiki" Wo Daisho Ni Kikaku Gai No Chikara De Isekai Saikyo (BK Books) [Light Novel]

[Machine Translation] Allen Alstin was born into a family with a reputation for magic, but was expelled from his parents' home because of his "inability to work hard without results. He is at a loss for what to do, but when he stops by a town, an adventurer gives him the "fruit of the wise man," which comes at a great cost in exchange for amazing abilities. Ares, who has nothing more to lose, tastes the fruit and gains "memories of a previous life" and "the wisdom of a sage," and his magical abilities are awakened. With the awakened power and the wisdom of the wise man, Ares is admitted to the prestigious Asteria Academy of Magic. But at the cost of losing his "common sense"...?

魔法の名家に生まれながら、アレン・アルスティンは「努力をしても結果が伴わない無能」だと実家を追放されてしまう。あまりの出来事に途方に暮れるアレンだったが、立ち寄った町で冒険者から驚異的な能力を得る代わりに大きな代償が伴う“賢者の実”を手に入れる。もう失うものはないと実を口にしたアレスは、『前世の記憶』と『賢者の知恵』を手に入れ、魔法の能力が覚醒する。「これならあの王立魔法学院にも合格できるかもしれない」目覚めた力と賢者の知恵でアレスは超名門アステリア魔法学院への入学を果たす―。しかし代償として『常識』を失ってしまったために...?