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Phil was taken in by the [Great Sage] who once saved the world.

Raised as a grandchild by humanity's strongest sage, Phil inherited his talent, casting magic without incantation and even becoming capable of defeating dragons with bare hands.

However, one day, the sage summoned his grandchild.

"Phil, I've kept quiet until now, but the truth is, you are a [woman]."

Seriously?! By the way, what's a woman?

Phil, unaware of even gender, let alone common sense.

Worried about his grandchild's future, the sage decides to enroll her in the [Royal Academy].