Fushigi Yuugi

Fushigi Yuugi (ふしぎ 遊戯, Fushigi Yūgi, lit. Mysterious Play) also known as Curious Play is a Japanese manga series written and illustrated by Yuu Watase. It was originally serialized in Shōjo Comic from May 1992 through June 1996. The manga series was given an English language release in North America by Viz Media, which started in 1999. Spanning eighteen volumes, Fushigi Yuugi tells the story of two teenaged girls, Miaka and Yui, who are pulled into "The Universe of the Four Gods", a mysterious book at the National Library.