This is a novel about human nature.
In the natural world, most animals are raised by their mothers, and their fathers leave after they are finished.
Human beings basically abide by the monogamy system established by civilized society, and then jointly raise offspring and assume responsibilities.
Some psychologists say that teenagers aged fourteen or fifteen are aggressive, and most of the targets of the attacks are their fathers. The father, as a male, is also aggressive.
So, what is our relationship with our father like?
***Story synopsis: The protagonist Yang Qing, who used to be a policeman, witnessed a murder case by chance. She quietly investigated in her own way, but discovered a little-known secret.