The content of the story is that the heroine's father is the police chief, the hero is in illegal business, the heroine Xiaobai takes the initiative to pursue the hero, the hero once had a childhood sweetheart, but died unexpectedly, the heroine is very similar to the hero's childhood sweetheart, the story begins with the hero treating the heroine as a childhood sweetheart and falling in love, in the middle the heroine's father has an accident, and then the heroine's love never enters the hero's heart. Then the female protagonist agrees to the male protagonist's request and becomes the police's insider, lying in wait beside the male protagonist to collect evidence of the male protagonist's crime.