Fushigi Yugi

A girl called Miaka Yuki and her friend Yui are sucked into a book called 'The universe of the four gods'. They are attacked but rescued by a young man called Tamahome. They make it back home but Miaka ends up going back in again. Yui goes after her to try and save her but is attacked. Miaka meets the emperor and he declares that she is the priestess of Suzaku, the god that their country worships. Being the priestess means that if she gathers the seven celestial warriors of Suzaku together she will be granted three wishes. The emperor asks that one of the wishes be used to protect his kingdom from a neighbouring country. Unfortunately Yui was rescued by a man from this other country and has now become their priestess. Yui blames Miaka for her attack and says that she now considers her the enemy. The story follows Miaka as she struggles to save both her new friends and her best friend Yui.