The main human character of the series: a pink-haired, red-eyed, 16-year-old, high school student obsessed with mysteries and the occult. Despite her love of mysteries, she never manages to find out who Loki is - partly because she has absolutely no sixth sense, despite being the daughter of a Shinto priest. Mayura also seems to have romantic feelings towards Loki near the end of the anime series. However it is shown unclearly in the manga, since she only knows him as a child. She does not believe in God because her mother died despite countless prayers. There are significant differences in her personality in the manga and anime. In the manga, Mayura is calmer, not shouting "Fushigi mystery!" (strange mystery) as often as she does in the anime and seems to have a sharper sense (being able to know Loki is "different" and wanting to ask him who or what he was in the seventeenth chapter).

Source: Wikipedia