Fushigi Yuugi is a manga done by Watase Yuu.
Miaka Yuuki, a 3rd year junior high school student, finds an old book in the library call THE UNIVERSE OF THE FOUR GOD. The moment she opens it, she is transported to the world that is inside the book. When she is attack by a ruffian but save by a handsome boy. She finds herself back in the real world again!!! However when she went inside the book again, is found herself stuck in the world and was unable to come back...