From publisher blurb:
In Katanas & Trenchcoats, Episode 1: Welcome to Darkest Vancouver, you got to meet its Immortal population and get a little bit of sweetness around vampires, werebeasts, ghosts, vypers, and more. Katanas & Trenchcoats, Episode 7: Celestial Boogaloo adds some sweet and spicy to that sauce with the power of angels and demons.
That's right, welcome to Darkest Heaven and Deepest Hell. God got fed up with angels constantly being angry about the Fallen—that doesn't make for a chill vibe—so He left and took most of the cool angels with Him. You probably have an idea of what Heaven's like after that. Hell, on the other hand, is a con artist rave that's gotten too crowded, and demons love to get the hell out of Dodge and roam the Earth.
This completely original RPG supplement is inspired by prophetic works like Supernatural, The Prophecy (1-3 only; to hell with 4), Constantine (not as bad a movie as some make it out to be, I swear; Swinton and Stormare were amazing), and holy texts like Paradise Lost (at least the wikiquotes edition) and In Nomine.
Think of Celestial Boogaloo as the Book of Leviticus for the Katanas & Trenchcoats-verse.