One sentence introduction: The main theme is "contrast cuteness" + "pretending to be a pig and eating a tiger" + "a group favorite".
Core summary:
The heroine Jiang Yue grew up in the countryside and learned some half-baked medical skills from the barefoot doctor in the village. When he went to Beijing to find his family, he found that his father, who was a general, was worried because "his daughter died in battle and could not marry into the royal family." In order to survive, she replaced her sister who "died in battle" and became the legendary eldest daughter with "a bad temper and strong ability to carry a cauldron". She was forced to marry the sickly prince, who was rumored to not survive the age of twenty-five.