By the Luoxi Lake of Imperial College, the legendary Luoxi Sanfeng are three young doctors with unlimited fame.
Forensic doctor Xiao Yan (You Feng) is a calm and taciturn person who spends all his time with corpses and evidence; criminal investigation doctor Qi Yao (Liu Feng) seems to be a bohemian and possesses security forces; law doctor Cen Xubai (He Feng) is gentle and elegant, and is proficient in the laws of many countries.
No one knows that beneath the glamorous shell of the doctor, there is a bloody past of being kidnapped at the age of eight. The hidden master taught them three sets of special detachable weapons, and the secret room in the basement of the old school building sealed the sharp edges. The commandment to not reveal the sharp edges was engraved in their hearts. He usually uses his knowledge to solve crimes, but only in desperate situations of life and death can he unlock the fighting blade.
The wild girl Lin Xiaoman crashes into the examination room and clashes with the Bingshan forensic doctor; the technical genius Jiang Wan Ning confronts the playboy Qi Yao head-on; the chivalrous girl Ruan Zhi carries an unsharpened watermelon knife and encounters the respectable lawyer Cen Xubai on the road.
Three happy relationships unfold slowly. In addition to the sweet slapstick, a major transnational money laundering case is undercurrent. A red paper butterfly sent by a mysterious man quietly arrives, pushing the secrets of the three men's vests that have been buried for many years to the forefront.
Love is torn between secrets and dangers, misunderstandings abound, there are duplicities to protect the love, and there are also forced push-aways and regrets after pursuing the wife. When the layers of disguise are peeled away by the three girls, they must make a choice: continue to bear the darkness alone, or face the raging storm together with the ones they love.
