This series was pitched to me as "Good Omens with lesbians" but sadly I wouldn't say it lives up to that claim. It's by the same author as "Witch Hat Atelier" and it is just a beautifully drawn, but it's missing an emotional core to really hold the plot together. Each chapter is essentially a standalone story about a demon and angel who have been in petty conflict for millennia; the theft of a tube of lipstick or pair of earring will set of a battle that destroys half a city. One fun element is that the leads can both magically change their outfits, as well as grow and shrink their wings, at will; the looks are all so fun.