Off the Cliff

So I'm translating a Seimei story in which a lady abandoned by her lover goes off and asks a pair of dragon rain gods to turn her into an oni so she can revenge herself. Why ask dragons for this kind of favour? Who knows. That's what's in the noh play the story's based on. (Next question: does Yumemakura ever make up original stories in all that 'think think think'ing he does, or does he always crib from Zeami? Answer: do not ask.)
( Cultural considerations, plus spoilers for the story Kanawa )