After making their way through the Dream World and having a rematch with Doremy, our heroines once again run into the divine spirit, Junko. And this time, she's not alone. This time, she's accompanied by the Goddess of Hell, Hecatia Lapislazuli. Hecatia assisted the divine spirit out of a mutual hatred for the Lunarians—specifically Chang'e—and also out of a sense of sympathy. She planned on trapping the Lunarians in the Dream World, but she had no idea that they would attempt to wipe out all life on Earth. None of that matters now. It's time for our heroines to end this battle once and for all! Which means they must best the duumvirate in a danmaku battle!