There is no historical evidence that this character ever existed in history. When China recorded historical facts in ancient times, the names of princesses and concubines were not recorded, unless they had great influence on the country at that time. However, the lack of records also gives future generations a lot of imagination, and the plot and characters in animation can be shaped by imagination.

Princess Gao Yue, later named Ji Ruqian, is the heroine of China's martial arts 3D animation "Bright Moon in Qin Dynasty". There is no such figure in history, but the prototype of this animation is the heroine in Wen's novel of the same name.

Ji Ruqian was originally the daughter of Prince Dan of Yan State. She was a princess of Yan State, and her title was Gao Yue. She is pure, kind, elegant and gentle. At first, she lived a luxurious life. Later, with the help of Master Duanmurong, he fled to Mohism and lived an ordinary life. However, there is an unusual aristocratic atmosphere in her words and deeds.

Gao Yue, a child of Mohism, is good at pharmacology and often accompanies Duanmu Rong, a medical fairy of Mohism, to help her. Although she has no accomplishments in martial arts, she is very talented in Yin and Yang witchcraft. Later, Yueshen, the right protector of the Yin and Yang family, took Gaoyue away, erased her memory, took her to the Yin and Yang family and told her that her real name was Ji Ruqian, so she had the noblest aristocratic status of Ji surname, which lasted for thousands of years. Then she walked into a mirage, which played a great role in the interpretation of the seven nights of the Black Dragon.

Gao Yue's mother is Yan Fei, the crown princess of Yan State, and her real identity is actually Yan Fei, the oriental monarch of Yin and Yang family, so Gao Yue will have innate ability in Yin and Yang surgery. She is familiar with the writing, pharmacology and medical skills of the seven countries, and knows a little about Mohism.