The distortion of the universe revives the great emperor Zolder. Zolder sends space beasts as assassins to invade Earth. One after another, people's souls are pulled out and sacrificed... One day after such an incident, the owner, Mai Tenkuji (Rena Sugimoto), is given the power of light by an alien and gains the ability to transform into a Cosmo Angel. Now the battle between light and darkness was about to begin.