Sanxian, a girl from the Yu family, has been frail since she was a child. The grandfather of the Yu family was distressed and was taken to Baiwei Mountain by his master to learn superb medical skills.
On the occasion of the Yu family's grandmaster's birthday, he sent someone to pick up Sanxian, and that's when things happened. The Yu family was imprisoned, and Sanxian was ambushed on the road. By chance, she joined the Shang Mansion as a maid. She fell in love with the merchant's eldest son and killed each other in the merchant's mansion, but later met the unpopular fourth prince. The two formed an alliance, Sanxian sought the throne for the fourth prince, and the fourth prince helped Sanxian save his family and clear his name. Shang Shi'an, the prince of Shang Dynasty, was also implicated and returned to his mother's house to start a confrontation...
