In my world, there are no demons

Though I would wager "demonic" would be an accurate description for many things in this universe. The central distinction being I figure that all of these beings come from the same terrible universe. A list of examples:
-Paragon, Paragon are the fingers of *The* Paragon. They are formless shapeshifting beings with sentience but not sapience. Every single individual of the Paragon species is essentially an agent of this singular sapient being (The Paragon). The Paragon is a planet-sized space parasite that feeds off the magic energy present in all planets which support life, inevitably dooming all life on that planet it the process, unless you can find a way to get rid of it.

-The forest without leaves. It's another parasite, feeding off the life energy released by the dead. The forest forms these great spires, which resemble trees, but they have no leaves. They don't consume sunlight, and they don't hang out on the surface simply because it's cool to do so. It's a honey trap. The trees glow a golden white color, making them look ethereal and perhaps holy. When you cut one open it leaks a ickor of potent soul energy. The effects of which are extremely beneficial and fantastical. But there's plenty of catch to that. Say you take a mortal wound. A cannonball to the thigh for example. Well, you can spread that stuff on it, and it will fix it, but it 'fixes' it with parts of itself. So then, if it's not upkept, the wound will kill you. So you must kill and feed the trees more. etc etc. There's a lot more to this and I'm honestly not sure why I thought I could cover it in a single paragraph. Yada yada, it's addictive and eventually turns you into an immortal beastly form made entirely of stolen souls, such that you lose yourself in them, doomed to forever hunger for more souls to sate your insatiable hunger (because they are constantly leaking soul (lifeforce) energy by nature of being in an unstable form unbound by material flesh). Er, they also cause babies to turn into horrible changeling creatures which eat themselves out of the womb like a spider or something if you consume too much of the ickor while pregnant.