Aya Mikage is a normal teenage girl until she reaches the age of 16. Aya found out that when truly shaken psychologically, she transformed to the cold and ruthless Ceres, who's looking for revenge on the Mikage family. That's the reason why her own family decided to kill her on her 16th birthday and imprison her brother. In order to regain her normal life she struggles with the ever twisting fate of her being the reborned Ceres.Futhermore, she has to thwart all attempts at murdering her, plotted by none other than her own family. Aya has to find a way to rescue her beloved brother and while doing so, more and more reborned Tennyos appear and mysteriously a boy named Yuuhi is set to protect her with his life. However, evil lurks in every corner and in the form of Kagami, Aya's cousin who employs Tooya to secretly observe Aya and Ceres. Little did Kagami knew, that the daily observation have led Tooya to slowly fall in love with Aya.