Qian Weiwei, the 10th generation descendant of the imperial family of traditional Chinese medicine, was secretly plotted to become the eldest daughter of Qian Hai, the richest businessman in the Great Xia Kingdom. She was betrothed to the sixth prince Mu Ling before she was born and was planning to get married three months later.
Miss Qian was frail and sickly. She took medicine since she was born, so she stayed in the countryside and was known to everyone as a sick child.
Although Mu Ling was a prince, he had been poisoned with cold poison since he was a child. It had developed to the point where he had attacks once a month. Every time he had an attack, the cold poison would seep into the bone marrow, causing bone-breaking cold pain.
Mu Ling was ordered to return to Beijing to get married. On the way, he suffered from cold poison and encountered a killer. He happened to be rescued by Qian Weiwei, who also went to Beijing to get married.
After the two got married, they agreed that Qian Weiwei would help Mu Ling detoxify, and Mu Ling would protect Princess Qian Weiwei's status.
Later, the two established a relationship while living together. Of course Qian Weiwei would not share her husband with anyone else.
