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I see there is now a male bookworm anime, well, he does it to learn magic.
If you don't know about the bookworm anime, Ascendance of a Bookworm is an anime about a librarian. She gets reincarnated into a medieval fantasy world and is super into making / reading books.
I feel like I've read this somewhere before. Reincarnated as the 7th prince to learn magic. I probably have.