Miaka is a fifteen-year-old junior high school student. She, along with her friend Yui-chan, discovers the book The Universe of the Four Gods one day in the library. She decides to become the Suzaku no Miko when the emperor of Konan, Hotohori, mentions to her that if she becomes the Miko she'll have the power to make wishes come true. So of course she thinks of how she'll be able to pass the entrance exam for high school, be popular, get all the food she wants (she can be a real pig when it comes to food!)... that's what she thinks of.
She falls in love with Tamahome, and is grateful for the way he always protects her, though she fears that one day he'll die protecting her.
Miaka may act rather ditzy sometimes, but she is very sensitive towards the feelings of others and realizes when she is in the wrong. She is aware of the things her friends do for her, and of how they feel about her. She has a very carefree nature, which sometimes makes her unaware of the dangers around her. Her carefree nature can quickly disappear when faced with real problems and can just as quickly reappear when a solution is found.