In Ceres: Celestial Legend, Aya Mikage finds her world turned upside on her 16th birthday, when her family suddenly tries to kill her, her twin brother is taken away, and her father is killed. Aya learns she is the reincarnation of Ceres, a celestial maiden seeking her celestial robe and revenge on the Mikage for keeping her trapped in this world for so many centuries. As Aya seeks the robe, another branch of the Mikage family pursues her to capture Ceres for their own gain.