Percy and Peony in Kingdom Hearts

What would happen if there were twins with magic powers that were separated for eight years? What if they joined Sora, Donald, and Goofy? What if there were eight Princesses of Heart instead of seven? Percy and Peony go on a journey with Sora, Donald, and Goofy and learn many secrets of their past and about other worlds. I do not own Kingdom Hearts, I only own Percy and Peony.