woeroboros:

Once a mighty demon who caused fear into the harts of men, she was injured in a duel and her left horn was severed. The trauma caused her to revert to a child like state with incontinence. No longer able to be the once fearful demon she was, she has been reduce to low “recently made up” position of Diaper Demon. Now she uses her powers to turn men into diaper sissies and mess her own diaper for fun.