The heroine Xuan Ling comes from a wealthy family and has been well protected since birth. However, due to special family circumstances, her father disappeared after she was demoted. Her brother was also framed after he became a general, and has since embarked on the path of self-growth.
The male protagonist is the unpopular third prince. Because he has his eldest son, he was sent to a fiefdom at an early age. He later studied medicine and felt the suffering of the people. After being repeatedly assassinated on his way back to Beijing, he decided to fight back and finally took the throne.
Mission: Mutual help, alliance of the strong