Chu Yunling, a 29-year-old master of modern integrated Chinese and Western medicine, woke up and transformed into the most useless female medical officer of Dayan Chaotai Hospital. Everyone in the hospital was waiting to see her joke. No one knew that this little medical officer who couldn't even find a medicine cabinet had five years of tertiary clinical experience and the entire evidence-based medicine system in his mind. When she discovered that the imperial doctors had misdiagnosed the emperor's spleen and lung qi deficiency as lung heat, they secretly changed the imperial prescription - changing the imperial prescription was a capital offense. And that cold-faced imperial envoy Xie Yutang, who was as cold-faced as the King of Hell, was checking her inch by inch...