Dr. Fan Wanqing, a medical doctor, transformed into a concubine who was marrying for a wedding, and was bound to the "healing gambling system". If she saves the short-lived prince Sun Xuanran, she will be free; if she fails, she will die suddenly on the spot. Facing her suspicious husband, who wanted to strangle her to death at any time, Fan Wanqing could only take out the scalpel and said, "Your Majesty, if you want to survive, why don't you sign an agreement first?" Later, the powerful prince pushed her against the wall with red eyes: "The agreement is void, and I will use my country as an employment in exchange for your life."
