Title: Juuni Kokuki / (The) Twelve Kingdoms
Author: Ono Fuyumi
Illustrator: Akihiro Yamada
Genres: Action, Adventure, Drama, Fantasy
Translation: [Eugene Woodbury](http://eugenewoodbury.blogspot.com/2009/04/the-twelve-kingdoms-novels.html) (1, 3-7), [Tu-Shu-Guan](https://tu-shu-guan.blogspot.com/) (2), [o6asan](https://o6asan.com/hsbird/) (8)
> For high-schooler Yoko Nakajima, life has been fairly ordinary–that is until Keiki, a young man with golden hair, tells Yoko they must return to their kingdom. Once confronted by this mysterious being and whisked away to an unearthly realm, Yoko is left with only a magical sword; a gem; and a million questions about her destiny, the world she’s trapped in, and the world she desperately wants to return to.
Uploaded by request. I don't really know this story but it dates back to early 90s and sounds like a mature take to, basically, isekai (and the ratings seem to really give it good credits). It was adapted into anime aswell.
Unfortunately it looks like the series has been put in a long hiatus as of now. Anyway here are all the volumes that have been translated into English.
Epubs are from Eugene Woodbury site, and the ones missing were compiled by me.
PDFs are from vn-meido (NOTE: only volumes 1-7). I added them because they were nice and ready. I dont know how to make pretty pdfs myself.