Diana Fairchild

Diana Fairchild briefly transformed into what was called Transformed Diana by the after she stole Ibuki's Demon Whistle.

Diana Fairchild
She is Ibuki's apprentice. Her parents were killed by Makamou & only choose to become a Demon in her quest for revenge. During her training as a Demon, she was able to transform into a Demon, in an attempt to save Ibuki. She eventually chose to give up her goal of being a Demon & resumed a normal life.