Lin Qingdai passed through the book and became the original partner of the love brain of the same name. She was originally obsessed with Chen Yanzhi, a cheating scumbag, and ended up dying. After her rebirth, she gave up chasing love and relied on her vague memories of traditional Chinese medicine in her previous life and her unexpected medical talent in this life. She started as an apprentice in a drug store. In the process of beating scumbag men in the face and outsmarting mistresses, she was passively involved in many unsolved cases in Hong Kong's Chinese community. She also became fettered with Jia Rongchen, a young man who appeared to be a playboy but was actually hiding his edge. Without a golden finger, she relied on calm review, technical correction and insight into human nature to rewrite her destiny step by step. In the end, when she became famous in medicine, she also found herself, which is more precious than love.