honzuki no gekokujou
本好きの下剋上 本好きの下剋上_〜司書になるためには手段を選んでいられません〜
Honzuki no Gekokujou is an isekai fantasy series. The main protagonist is a hopeless book lover who unexpectedly dies and gets reincarnated in a fantasy world as a young girl named Myne. The only problem is that there are no books! And thus begins her relentless efforts to reinvent books in that world and spread the joy of reading to those around her!
The series started as a web novel by Kazuki Miya and was later published as a regular light novel. The novel itself is completed, but there is both a manga serialization and an anime adaption which are both ongoing.