Yoko Nakajima is a fictional character from the Japanese light novel series The Twelve Kingdoms, written by Fuyumi Ono. She is a high school student who is transported to a fantasy world filled with mythical creatures and political intrigue. Throughout her journey, Yoko undergoes significant personal growth as she learns to navigate the challenges of her new environment. In the series, Yoko is known for her strong sense of justice and determination. She faces various trials that test her character and leadership abilities. As she adapts to her new life, Yoko becomes a key figure in the unfolding events of the Twelve Kingdoms universe.