The youngest daughter of the Xie family, who was born into a prominent family in Southern Chu, was favored and rich. However, she lost her parents when she was young and had only one wish - a safe and happy home. To this end, she acquired medical skills and used her body to feed gu to cure her brother. By chance, they met Fang Wuying, the secret agent of Beili. After his identity was discovered, the other party planned and deceived step by step. The bond between the two became deeper and deeper, and they unknowingly deceived their hearts...
For the sake of her brother, she cut off her thoughts, but when she was young, she met someone who fought for her and blocked arrows for her. Even though she knew that she was on a road of no return, she still chose her unswervingly; but when she lost her loved ones and her country was ruined and her family was destroyed, she didn't know who was standing in front of her...
As the illegitimate son of King Quan of Beili, Zhao Xun has endured the hardships of living in a troubled world since he was a child. For this reason, he wants to change everything, even at the cost of becoming a spy and a murder knife. However, he is the best at calculating people's hearts, but he has thoughts about the person he plans. After the truth is revealed, they meet again. He tries hard to seize everything, but it seems that nothing can be retained...
Mission: In the battle for power, there are no survivors