Jing Yu, the Ninth Prince of the Southern Kingdom, is a well-known "devil king" in the royal family, but his brother, Emperor Jing Xu, shields her and never blames her.
Affected by the palace coup decades ago, Princess Jingyu was raised by the late emperor as a prince while her gender was hidden since she was a child.
The relatives were ready to poison the late emperor, who had suffered a stroke, in an attempt to install the puppet King Jingxuan of Huai'an as emperor. Eight-year-old Jing Yu escaped from the palace at the risk of death and sent the tiger talisman to the guard camp outside the city. The army arrived in time and rescued the prince Jing Xu who was under house arrest.
Jing Yu was granted the title of King Chen by the new emperor and was granted special permission to live in the capital. He did not have to move to a fiefdom and could freely enter and leave the palace.
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Faced with the imperial censor's letters coming from time to time, Emperor Jingxu had no choice but to arrange a marriage for him. He wanted to find a good wife for his troubled "brother", and Guo Tingting, the daughter of Duke Zhenguo, was the best candidate...
Purpose: Prince Xixi and her princess upgrade to fight monsters