The Twelve Kingdoms is a tV series anime that premiered in spring 2002, produced by Studio Pierrot.

About the production: the story comes from a light novel, there are 45 episodes of about 25 minutes and its current status is "finished".

Its main genres are action, adventure, fantasy and supernatural, with themes such as Isekai, Female Protagonist, Coming of Age and Politics.

On AniList, The Twelve Kingdoms has an average score of 77%, a very good score, and appears on 41,975 users' lists.

Nakajima Youko is your average somewhat timid high school student. One day, a strange man named Keiki appears before her, swearing allegiance. Before she could properly register what was happening, demon-like creatures attack Youko and her friends, after which they are pulled into a different world. A world unlike what she has ever known. Separated from Keiki, Youko and her friends must do whatever they can if they wish to survive in this new world.

Official synopsis from AniList.