The heroine Lin Nian was betrayed and broken up by her boyfriend Shen Yue, who she had been in love with for three years, and fell into a low point in life. After joining a new company, she unexpectedly discovered that her immediate boss, Gu Shen, a man who was rumored to be unkind and aloof, began to treat her with "special care". From a cup of hot coffee when she worked overtime late at night, to fighting against everyone's opinions when the project was in crisis, to personally sending her to the doctor when she was sick... Everyone said that Mr. Gu had changed. Only Lin Nian knew that this man had reached out to her five years ago, but she chose someone else at that time. On the day when her ex turned around and begged to get back together, Gu Shen protected her behind him in front of the whole company: "Who is allowed to touch my person?"