Seven Princesses of Heart

The Seven Princesses of Heart are the key to unlocking the Door to Darkness. They consist of the seven princesses Aurora, Snow White, Alice, Cinderella, Jasmine, Belle, and Kairi. All of these charachters have one thing in common: their hearts of of pure light, no darkness. When they are gathered together they will reveal the most important keyhole of all. The idea of gathering the princesses was first introduced by Master Xehanort to Maleficent in Kingdom Hearts Birth by Sleep. It took a very long time to gather all of them together but Maleficent finally managed to do it in Kingdom Hearts until Sora set Kiari's heart free, thus turning himself into a heartless.