Black Tech Internet Cafe System

In a distant foreign world, there is such a weird Internet cafe. This Internet cafe charges extremely high, it has no network management service, and each customer can only play a maximum of 6 hours per day. Of course, the owner never gives a damn about those customers; he plays video games all the time and let the customers help themselves; he closes the door without hesitation once the time is up! The announcement attached to the door saying: If you don't want to stay, fxxk off! This cafe occasionally sells snacks like Sprite and Haagen-Dazs, but everything is priced out of this world. It's crazy, right? Would anyone come to such an Internet cafe? Well, it actually turned down the Emperor's invitation several times, and now it is still crowded with visitors! As for the reasons, it must be its unique system that enables people to run a virtual reality...