__Height:__ 166 cm
 __Specialty:__ Turn into a celestial being (Ceres)  

A high-school girl and the protagonist at the beginning of the story who discovers she is a descendant of a tennyo named &quot;Ceres&quot; and is Ceres&#039; latest medium  for existence. The Mikage family takes this as a threat and continuously tries to take Aya&#039;s life. Her father is killed attempting to protect her. Her mother is forced into a coma for the majority of the series. While Aya is initially horrified that her life has been turned upside down, she is determined to right the past doings of her family and recover Ceres&#039; hagoromo so that her family will no longer suffer in fear of her. As the series progresses, she falls in love with Toya and they conceive a child together. She likes singing and talking on the phone.  (Source: Wikipedia)

Ceres was a tennyo, a celestial maiden, who came down from the heavens to bathe in a stream. She hung her hagoromo (robe) on a tree nearby, which was her key to returning to the heavens. But the robe was stolen and the man who had stolen it forced her to become his wife, thus producing a family full of human and tennyo blood mixed. 
Now, in modern day time, Aya Mikage is a descendent of Ceres, and has quite an amount of tennyo blood. On her 16th birthday, she and her twin brother, Aki, are thrown a party. At the "party", Aya's grandpa plans to kill her, for she has tennyo powers unlike the rest of the family, and can actually become Ceres herself and destroy the Mikage family. Aya, however, can switch back, so this transformation happens quite frequently. 
With protector Yuuhi by her side, it is up to Aya to control Ceres and keep her from coming back, but her relationship with an ex-worker for her evil grandpa may be a distraction.

__Non-Anime Roles:__
- Kula Diamond in _King of Fighters_ game series

Aya and her twin brother Aki thought they were going to a celebration of their sixteenth birthday at their grandfather's home, but the funeral-like atmosphere tips them off that something's not right. Their "birthday present" turns out to be a mummified hand--the power of which forces an awakening within Aya, and painful wounds all over Aki's body! Grandfather Mikage announces that Aki will be heir to the Mikage fortune, and Aya must die! But Aya has allies in the athletic cook and martial artist Y&ucirc;hi, and the attractive, mysterious T&ocirc;ya. But can even two handsome and resourceful guys save Aya when it's her own power that's out of control?
 
(Source: Viz Media)
 
Notes: 
- Winner of the 43th Shogakukan Manga Award in the shoujo category.