Yao Mujin was the legitimate daughter of an envoy from the Cheng Kingdom. She encountered a sand bandit on her way with her father, and was later rescued by Tou Erman, the king of the prairie. She recognized her as an adopted daughter and became a princess of the prairie. When he was young, he was forthright and forthright. After the grassland coup, Prince Mao Yidun became the new grassland king and formally proposed to Yao Mujin. The two were about to get married, but Yao Mujin was framed by someone. In order to save Yao Mujin, Mao Yidun, who was in an unstable political power, was forced to marry Lan, the daughter of King Zuo Xian. Yao Mujin left the grassland and returned to Chengguo with disappointment in Mo Yidun.
Arriving in Chengdu, Yao Mujin accidentally rescued the queen in distress, and the two became sworn brothers. She helped the queen get rid of the traitor Chen Fei, and developed a secret love for her while spending time with the queen's land Yiyun. However, after finding Cheng Guo's aunt, she learned the truth about her father's murder, and returned to the grassland alone to kill everyone.
Yao Mujin, who returned to the grassland, lost her youthfulness, became decisive in killing, and finally got her revenge. Just as the war between the grassland and Chengguo broke out again, she left decisively between Mao Yidun's true confession and Yiyun's silent stay.
Purpose: Men want a beautiful woman, while women want a loving concubine who will protect me in times of crisis. If he can't protect me, I don't want the fame, wealth or fortune.