Lin Wan, the doctor in charge of the modern ICU, died suddenly of overwork. When she opened her eyes again, she became Xiao Yunxi, a concubine who could be bullied by everyone in the Zhenguo Palace. She took over the original owner's mess, but found that in this era, in addition to silver needle herbal medicine, there was also the ICU first aid logic she was most familiar with, pharmacological reverse poisoning, and acupuncture to restore Yang for emergency relief. The stepmother and eldest sister gave her biological mothers chronic poison, and she let them reap the consequences; the emperor suffered a heart attack and the imperial doctor was helpless, so she brought the emperor back from hell. From the Duke's Mansion to the Imperial Hospital, she relied on her modern medical skills to ascend to the throne and change her life.