Events take a gruesome turn when twins Aya and Aki go to their grandfather's house on their sixteenth birthday.

Aya is rescued by Toya after witnessing her father's death; Aya leans she is a tennyo.

Aya learns that the Mikages are descendants of the legendary celestial maiden, and that they have been killing girls her age for a long time.

Aya transforms into Ceres and demands to know where her robe is; Aya's mother falls into a coma.

Aya and Aki reunite briefly; Aya realizes she loves Toya.

Kagami locks up Aya to experiment on Ceres.