Here, the world is like Japan, but is not so.
Big-eyed girl Delica. She is foraging for food as usual, then...

　"Hey, I'm Saten. What your looking for,
　 I saw a white hippo ate."

　Apparently, it's the work of them that are out a lot.
And this cat said.

　"Become a magical girl with a contract with me!"

　...This is a lie. Just kidding.
Anyway, Delica become a magical girl, and try to punish those guys.
This is the story like this.

　It's mind-bending. What a surprise waiting for you?
...Yes, I lied again.
There is no content, or not? Such that story is waiting for you!