I just read a fic where a centuries-old demon genuinely flounders when the human protagonist cries from grief, not pain or fear. It wasn’t written as mockery or confusion; the demon’s internal monologue kept circling back to the ‘illogical saltwater’ and the ‘waste of vital energy.’ The narrative framed it as encountering a phenomenon so fundamentally alien to its survival-based worldview that it had to pause its grand evil scheme to run diagnostic spells on the air, checking for magical influence. That stuck with me—portraying emotion not as a weakness the demon exploits, but as a baffling glitch in reality it needs to troubleshoot.
Another common take I see is demons perceiving strong emotions as a tangible, almost edible resource. Lust or rage might taste ‘spicy’ or ‘smoke-tinged,’ while sorrow has a ‘metallic aftertaste.’ It shifts the dynamic from psychological to sensory. The demon isn’t empathizing; it’s a gourmet sampling a dish, which can be creepy and dehumanizing in a really effective way. Sometimes they’re collectors, too, bottling up a particularly potent burst of joy like a rare vintage.