Zhan Shan, the fourth king of the Dawen Dynasty, has been in power for twenty-five years. The prince Zhan Jiutian is a young and heroic young man who falls in love with Yan Yan, the daughter of the prime minister, at first sight. After three years of falling in love, they finally got married.
However, on the wedding night, the situation suddenly changed. Anyuan Hou Zhan Zhihao led his army to rebel, killed Queen Xie, imprisoned Yan Yan, captured Zhan Shan, and overthrew the country.
Jiutian and his younger brother Jiuchong went into exile, gathered their old troops, and after a bloody battle, finally regained the throne. However, although Yan Yan returned, her body and mind were broken. In the next three years, she supported her illness, assisted Jiutian in governing the country, accompanied the army in the expedition to Daliu, and used her remaining body to help Dawen expand his territory.
In the autumn of the sixth year of Tianxing's reign, Yan Yan died of illness in the palace, leaving no children and no regrets. He was buried in Niangzi Mountain where they first met and fell in love.
Nine days of grief and grief. Ten years after he ascended the throne, he abdicated to his younger brother Jiuchong, and retired to Niangzi Mountain alone, guarding the solitary grave under the osmanthus tree until his death five years later.
Flowers bloom and fall, people gather and disperse - that promise in the mountains is finally fulfilled in another way.
