The man lies on his back on the sofa, looking at the lonely night sky outside the window, and began to recall the little things in the past. This man is named Yang Li, 177cm tall and thin. Thanks to his former training, he is still well maintained at 30. After graduating from the police school, he did not enter the police department or work in government agencies like most of his classmates. Instead, he chose a very challenging private detective as his first choice career. From a rookie who started his career, he grew up to a well-known private detective. When the situation was good, he once earned tens of thousands of yuan a month. Of course, high income also accompanied by high risks of various cases. It was precisely because of Yang Li's mysterious and passionate career that Si Qi, a student who was still studying in the School of Industry and Commerce, was so obsessed with him that they could not extricate themselves. In the end, the two fell in love. Si Qi, his wife, was 3 years younger than her husband Yang Li. When he was in school, although she was not a school beauty, she was also one of the best beauty in the college.