User blog comment:CureKanade/Possible new Cure for Doki Doki!?/@comment-4709609-20130526190914

So sure it's regina. But this is my theory: So Regina is the daughter of Joe and the princess like one said below, but when King Selfish came he brainwashed Regina to believe he was her daughter. So the Red Royal Crystal is controlling her because she has some of King Jikochuu's power in her. I also think she's going to look different after she may become Cure Ace.