One night, three princes looked up at the night sky and wished upon a star that they could have a princess with whom to share their kingdom. One prince was from the Kingdom of the East, the second from the Middle Kingdom, and the third was from the Kingdom of the West. A star heard them and responded that she would be interested in being their princess because she had wanted for a very long time to live on Earth.
So each prince, for his own reasons, hosted a ball for the star on a night that she would come to Earth. The star could be present at all three balls at the same time, but would only choose one prince.
When the star arrived at the ball hosted by the prince of the Kingdom of the East, the prince and all of his guests were in awe of her beauty. Everyone gathered around her because, in addition to her great beauty, she was charming and affectionate to all. She was as friendly to the servants as she was to the royal family. However, as the night passed so did her beauty. So the prince from the Kingdom of the East lost interest in the star.
Guests at the ball hosted by the prince from the Middle Kingdom were also enchanted by the star. When her beauty faded, the prince was satisfied by her ability to charm everyone. However, as the night passed, she became shy and withdrawn. As the guests found other ways to entertain themselves, so did the prince. He left the star alone.
When the star arrived at the ball hosted by the prince from the Kingdom of the West, she marveled the guests with all of her fine qualities. As time passed and her beauty faded, the prince took the star aside and told her that she was beautiful. Later that night when the guests were no longer gathering around the star because she became quiet and shy, the prince took her out to dance. After many dances, the star pointed out her lack of beauty and charm to the prince and asked him why he was still interested in her. The prince replied that she was the same now as when he had met her.
When the sun rose the next day, the star was gone for the princes from the Kingdom of the East and the Middle Kingdom. The star chose the prince from the Kingdom of the West and all of her beauty returned when she accepted his marriage proposal. She knew that as her human form aged, that she would always shine the same for him.