Male protagonist: Gu hope
A consultant detective, he is taciturn, but he has an unusual passion and unique taste for handling cases.
Heroine: Gu Zhenyi
The little assistant has a subtle and introverted personality, is serious and positive, has a very high enthusiasm for handling cases, and seems to be hiding a shocking secret that no one knows.
Second Male: Bai Le
Gu hope's friend for many years, a criminal police officer from H City, often assists Gu hope in solving cases.
The male and female protagonists will have vague emotional lines.