Two thousand years ago, a disaster swept through the land, corrupting all living things and making it too difficult to live. For those that still wish to live on this dead land, a temple was established. It was known as Saint Sheol.

I am a maiden who is ashamed of the flowers of this depressing world.
I was thinking about the person I was secretly in love with, and died in an unfortunate accident.
Oh, how pitiful I was... then, a pitch black devil appeared in front of me!
I'm now back from the dead, and I'm supposed to use my "dead girl" powers to bring down the men of the temple? With a "homemade pie"??

—"What are you talking about......?"

[Translated from the official website]