Megami Tengoku

To preserve the peaceful times of Paradise, the Astrostar must be cleansed by the Mamamega. This person is defended by her shrine maidens. Lilith has been selected to be a shrine maiden, and is given the task to select the other two. This goes awry when the young girl Rurubell wants to become one and others work from the shadows to sabotage both the cleansing and the coronation ceremony.