One day, the Earth is invaded by monsters. The daughter of Satan and Lilith, a demon, unlike her bloodline, wants to save humanity, she transforms herself into a superhero. Will she succeed?

The story of a young girl, Eliana, who loves summer, she meets up with her beloved Nicolas as usual but he has some bad news to tell her.

In the era of myths, a young girl named Hestia, trapped in a strange world, Yggdrasil, wakes up with no memory after being discovered by a young adventurer, Zmei. The voice of a goddness announces a long quest, to save the world from monsters called koszmarys.