Fushigi Yugi | eps 01 | classic anime 90's

It 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 Diet Library. It is essentially based on four mythological creatures of China. Shogakukan serialized Fushigi Yûgi in Shōjo Comic from December 1991 to May 1996 and later compiled the manga into eighteen tankōbon volumes