"Twelve Kingdoms" is a Japanese fantasy series created by Fuyumi Ono. It is set in a fictional world divided into twelve kingdoms, each with its own unique culture and governance. The story follows Yoko Nakajima, a high school student who is transported to this world, where she discovers her royal heritage and faces various challenges. The series explores themes of identity, responsibility, and the nature of power. It features a rich cast of characters, including kingdom rulers and mythical creatures, and delves into the political dynamics and conflicts between the kingdoms. The narrative combines adventure with philosophical reflections on leadership and destiny.