It tells the story of Lin Shuwan, a modern all-round doctor in 2024. After dying suddenly from overwork, she was transmigrated into an unpopular and ugly concubine in the prince's mansion. Facing the scumbag prince Murong Chen and the vicious side concubine Lin Xuerou, she used the space ring and her own wisdom to punish the evil and promote the good, cure the sick and save the dying. She amazed everyone at the palace banquet, opened a fried chicken shop and treated the plague, and gained a certain status and wealth. However, her emotional path was full of twists and turns. After being misunderstood and imprisoned, she faked her death and escaped from the prince's mansion.Four years later, Lin Shuwan returned to Kyoto in the guise of the Jiangnan master physician and poison expert, in order to treat her son who suffered from heart disease.