Jersey the Devil from the short 'Devil's Advokid' where he is the main character, a Demon who cause problem to a mother and her son.
Prompt:
Normal: jersey the devil, solo, 1boy, demon, purple skin, goat ears, demon horns, yellow sclera, slit pupils, black pupils, demon tail, black tail, pointed tail, dark purple pointed tail, hooves
Possession: Jersey the devil, solo, 1boy demon possessin a human, possessed human, light purple skin, short hair, ahoge, purple hair, horns, pointy ears, yellow eyes, yellow sclera, slit pupils, black pupils, sharp teeth, yellow tongue, green sleepwear