Trump Kingdom

Trump Kingdom was a kingdom which is featured in the season Doki Doki! Pretty Cure, also the place where [Cure Sword, Dabyi, Sharuru, Lance, Raquel and Princess Marie Ange were born. The place was under Princess Marie Ange's control where peace and happy things were before the Selfish King had invaded the land by turning everyone into a Jikochuu. The place first appeared in episode 7 of the season in a flashback.

In Peace
Everyone was happy, and in peace. Princess Marie Ange was happy and made people happier by making music, and when Cure Sword sang songs.

Under Selfish King's control
One day, the Selfish Trio, along with the Selfish King turned people into Jikochuus and made the kingdom turn into bad, but Princess Marie Ange couldn't let people just turn into Jikochuus and she decided to fight them along with her servants and her friend, Cure Sword. Princess Marie Ange was helping, but she didn't have enough power and gave up as she was locked up in a tower full of transporting mirrors. Cure Sword had survived and went in the tower and unlocked the queen, escaping into a mirror. Pell, one of the members of the Trio, fired pieces of mirror into them and made the queen go without Cure Sword, and both of them were separated in Earth. Cure Sword didn't give up and became an idol so she could find the Queen and the Kingdom could be back as normal.

Trivia

 * The Trump Kingdom is the first parallel world where the Pretty Cures originally come from. In fact, Cure Sword is considered as the last Cure of the Trump Kingdom, they had to be other Cures from this world.