The most difficult case he has ever solved in his life was admitting that he fell in love with her.
Tang Chen has always believed in an iron law - emotion is the natural enemy of logic, and intimacy is the poison of judgment. During his three-year criminal investigation career, he lived like an isolated island, until Li Xiaohuan was like an unreasonable sea breeze, from "forcibly forced into the group" in the first season to "life and death" in the second season, step by step, every crack in his island was filled with sunshine.
He was used to her chirping, used to her squatting on the ground at the crime scene and drawing cartoon characters to lighten the atmosphere, used to the cup of milk tea and the words "Boss, please smile" that she pushed over him when he was working overtime until the early hours of the morning. Then one day, he discovered that he had developed an extremely dangerous "bad habit" - when he saw her smiling, he would unconsciously raise the corners of his mouth. This habit could kill him more than any murder weapon.