Go! Princess Precure EP30 - To the Future! The Crystal of Power, Princess Palace!

While Towa protects Yui and the school from the Zetsuborg's attacks, Haruka and the others venture inside it in order to recover their keys. There, they come face to face with Lock, who vows to become the world's ruler in Dyspear's place. With Pafu's help, Haruka manages to use her new key to free the others, allowing everyone to transform again. Just then, Lock uses the remaining despair in the castle to transform himself into a powerful toad. However, all of the Cures' keys combine their powers to transform the castle into the Princess Palace, allowing the Cures to enter new Dress-Up Premium forms and defeat Lock, whose despair energy is taken by a crow.