It was the day before Aya and Aki Mikage's 16th birthday. They had some fun at karaoke, only the word of a fortune teller who foretold trouble coming there way. Suddenly a woman was robbed and Aya tried to help her. While trying to save the woman's purse, she fell off the bridge. Images to her and she floated safely to the ground. She landed on the highway and was rescued by a HOTT guy (named Toya). Aki and Aya were told to come straight home from school, even though they had other plans with their friends on their birthday. When they arrived at their Grandfather's mansion all of their relatives were already there. Confused about what was going on, they received their present. As Aki opened it the same images as before to her and she started to shiver. In the package was a mummified hand. Aya transformed into another woman and the hand was destroyed. At the same time Aki's body had cuts appear and he collapsed. Aya went to help her brother, but was stopped. They told he

At the Aogiri's house the head of the house, Suzumi, Yuhi's sister in law, tells Aya that she is a celestial maiden. Suzumi tells her that Mikage have killed many girls like her and that she should stay at the Aogiri's house. Suzumi also gives Yuhi a head band called obey the heavenly maiden band that only a celestial maiden can take off. Aya decides to take off so she leaves a note then heads off to home. At home she accidentally falls asleep on the couch and washes her face. While washing her face she has a vision and she sees the hospital that Aki is at dripping with blood down. At the hospital she sees her mom. Her mom asks her why Aya killed her dad and then she goes CrAzY and tries to KILL Aya. Aya gets stabbed in the hand and transforms into Ceres.

Toya beats up the thugs cornering Aki and takes him to where Aya is. Meanwhile Aya and Yuhi are talking and you learn why Yuhi stays at Suzumi's. They fall asleep and Aya wakes up. She goes into Yuhi's room, grabs a book titled, Folklore of Ancient Japan, and goes outside to read it. After reading a legend about a Tennayo, you see Aki. Aya and Aki are finally REUNITED! Although things go astray when Aya turns into Ceres, who tries to kill Aki, and then Aki has to go back to the Mikages. After Aya transforms back she follows after Aki and Toya. She talks with Toya and stays at his apartment.

Aya and Yuhi try to return to a normal life at school. Things turn out not to be so quiet after they meet another descendent of Ceres.

Aki is introduced to the Mikagi's secret "treasure". However, this secret will have an unintended consequence for Aki's grandfather.

The Progenitor, the man who trapped Ceres on earth, has returned--in the body of another person. Turns out, he could use a personality transplant. The Progenitor goes looking for Ceres, who he considers to be "his woman".

Toya forgets who Aya is, but remembers his past, and he remembers his previous girlfriend.

Yuhi and Mrs. Q are worried about Aya and Suzumi and she suggests they all go see a young singer named Shuro. He too is a descendent of Ceres, and he has a grudge against the Mikage after they inadvertently killed his singing partner, best friend, and fellow descendent, Kei. He is also harboring other secrets about himself, and has a plan to do major damage to the company that ruined both his and Kei's life. Aya finds out from Kagami about Shuro, and soon realizes the singer's plan. She also knows, like Shuro, that it will cost him his life. How can she take another death on her hands? Especially without either her husband or friends to support her?

Toya myteriously returns with his memories restored. He tells Aya that he knows what happened to Ceres mana. Meanwhile, the original Mikage returns again, and he has a surprise in store for Aya. Will Toya be able to protect her, this time?

Ceres and her mana are reunited despite Aya's protest about the price Toya will pay for this. Ceres has a plan for the Progenitor, the first Mikage. Will Aya get in the way of Cere's plan? Will Kagami and his empire pay a price for the restoration of Ceres, as was feared?