High Sky Kingdom

High Sky Kingdom (ハイ・スカイキングダム Hai sukaikingudamu) is a place far away from earth and homeland of Yukimura Aisu, Yukimura Tsubasa, Tsukigawa Luna and Tsukigawa Yoru. The place is ruled by King Senri and Queen Sora, Aisu and Tsubasa's parents.

Peace and Before Attacked
King Senri chose Sora to become his queen. They are close friend. The kingdom was in peace for 15 years after he ruled. He got four children, three sons and a daughter. Aisu and Tsubasa live happily there and close friends with Luna and Yoru.

Attacked by Diabolos
After his marriage, she disappeared and comeback as Diabolos. Diabolos has been corrupting peoples from earth and from the kingdom slowly since then. She ambush the attack on their anniversary which celebrated by the whole kingdom. King Senri and Queen Sora protected the kingdom along with other guards and their children. Their daughter, Aisu who is a cure transformed and helped them. In one of the flashbacks, it shows that King Senri lead the fight with Subaru, his son and Queen Sora lead Aisu, Tsubasa and Kiba with the fairies to the earth portal. In the middle of it, many Parasite attacked and Subaru came to help. Queen Sora stayed and fight. When they reach the portal in the pillars, more Parasites attacked and Subaru fight with Cure Blizzard and Tsubasa. But they mut send at least Aisu to the portal for the future of the kingdom. The Parasites started to attack Kiba, who hold the most important book. Kiba turned himself into stone to protect it. Subaru pushed Aisu and Tsubasa to the portal and destroy it.

Restored Kingdom
Before the war started, the cures had restored the pillars which broken by Diabolos. They also fight Diabolos before that and the kingdom restored to normal along with people in it. King Senri and Queen Sora also freed.

The Tale of Twin Swans Pair
The tale of Twin Swans Pair are a famous legend and also believed by some people as a prophecy. It tells us about two pair of twins who are friends. Both pairs are non-identical twins and in both pair the girl twin is the elder twin. One pair is from a wealthy and royal family, both are royalty and said to have dark hair. One twin is a legendary guardian while the other one is a skilled swordsman and possessed magical powers. The other pair of twin is from a simple and villager family, both are normal people and said to have light hair. One twin supposed to be a legendary guardian, but that twin denied it while the other twin is an excellent fighter and swordsman. Each pair represents a swan, white and black swans. Legend said, if they met, there will be a possibility of war between good and evil. Until now, it is unknown the rest of the story. People wonder who wins and what happened.

Later, it's revealed that the pair of twin are Aisu and Tsubasa as the white swans while Luna and Yoru as the black twins. They were about to fight, but Aisu and Tsubasa told them that the book only tell that there will be a possibility, not something settled and the book is unfinished which means they could write their own endings. An ending that no one gets hurt. Luna finally told Yoru, Tsubasa and Aisu that she actually known she's a cure few months after becoming Diabolos's army. She bonded with a fairy and received her headphone and jewel. But she denied it because she's too ashamed to came back to Aisu. The swans appeared and saying thank you for giving such happy ending and granting two twin swords which given to the male twins, Tsubasa and Yoru, to protect their sisters.

Legendary Guardians Story
This is the book of prophecy about the Legendary Guardians Pretty Cure. It told when each cure's power will awaken and how and where are they. It also told about what's going to happen and their enemies. Later, the book become a module for the cures to transform into their Guardian Forms.

Royals

 * Yukimura Aisu
 * Yukimura Tsubasa
 * Yukimura Kiba
 * Yukimura Subaru
 * King Senri
 * Queen Sora

Villagers

 * Tsukigawa Luna
 * Tsukigawa Yoru

Palace Peoples

 * Kanade
 * Alto

Trivia

 * This kingdom is protected by pillars called Majesty Pillars.