Xinglin Haruno, a young medical girl, has three wishes in her life: first, she wishes to have fewer patients; second, she wishes to have adequate medicinal materials; and third, she wishes to save enough money to retire as soon as possible, live in seclusion in the mountains and fields, and raise ten cats and eight dogs. In order to realize this simple dream, she worked diligently and diligently every day to save lives and heal the wounded (with extra money). Until that day, in order to save a tabby cat that was frightened by a carriage, she accidentally hit it and retrieved the unfortunate guy who was about to die in the carriage. Good news: The unlucky guy has a noble status and spends generously. He directly rewarded her with a large house in a prime location in the capital! Bad news: The unlucky guy is the rumored seventh prince who is surly and cruel, kills without blinking an eye, and can stop children from crying at night - Xiao Jin. Even worse news: Xiao Jin thought her medical skills were good and decided to "invite" her back to his house to be his exclusive medical officer. Looking at the row of shining knives behind him, Haruno nodded with tears in his eyes: "Being able to serve His Highness is a blessing I have earned in eight lifetimes QAQ." From then on, Haruno's retirement was postponed indefinitely. The daily routine has changed from "watching, hearing and asking, taking medicine and preparing medicine" to "smoothing His Highness's hair, watching His Highness go crazy, and trying to save my own life when His Highness is on the verge of going crazy". At the palace banquet, the imperial concubine made things difficult for her, so Xiao Jin slowly wiped the dagger: "Her hands are slippery, what should I do if I stick the wrong needle on you?" In the court, a political enemy stumbled, and Xiao Jin couldn't help but smile: "Master Li, you don't look good, why don't you let my little medical officer take a look?" Haruno: ... Help! I'm just a doctor! I don't know how to fight in the palace! But who can tell her why this crazy prince is violent and bloodthirsty in front of others, but behind others he is like a clingy cat?