In this world, many different cases happen every day, for example, someone commits suicide; someone is abducted; someone is killed... And so on. These cases may be known to the police and then solved, the criminals will be punished accordingly, and the victims can rest in peace; some cases may be reported to the police, but after the police know about them, they cannot solve the cases. The criminals go free and the victims die with resentment; some cases may not even have a chance to be known to the police. They are sealed in a corner of the world and no one discovers them. The criminals may live a peaceful life, but the victims may die miserably in a foreign land...
A man discovered this, so he opened a cafe, where there were many detectives who were willing to help if you were willing to pay. The price varied from person to person.
One day, a policeman went to this cafe and asked for the owner...
Intention: If you don't want others to know, don't do it unless you do it yourself.