The Fall of the Calix Animi

(This is basically a combination of both the games and the cuphead show lore tied together to create this story, while also turning it into my own original take of the cuphead storyline.)

The Legendary Chalice along with the rest of the Calix Animi perished at the hands of the devil many years ago, however, Chalice was able to return as an immortal celestial spirit. And has been on the run from the Devil ever since, 2,500 years later, she runs into two particular brothers who also happen to owe their soul to the devil, will Ms. Chalice finally be able to put an end to the Devil's reign of terror upon Inkwell Isle?