You can beat an old dragon with your bare hands, but isn't this common sense? (1) M-Novells

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Phil was picked up by the "Great Sage" who saved the world. Phil, who was raised as a grandchild of the greatest sage of all mankind, inherited his talent, chanted magic without chanting, and became able to defeat a dragon with his bare hands. However, one day, the sage said that he would summon his grandchild. "Phil, I have been silent until now, but in fact, you are a [woman]." Seriously! By the way, what is a woman? Phil, who doesn't even know her gender, let alone common sense. Worried about her future, the sage decided to enroll her at the Royal Academy. Becoming a Novelist Popular Fantasy!