What was going on with the UW chapter of the Saber-Sword God's Domain?

The UW chapter of the Sword and Sword Art Online was a work in the "Sword and Sword Art Online" series. The story took place in a virtual reality world called "Sword and Sword Art Online". It mainly told the story of the main character, Kirito, and the other characters 'adventures and battles in the virtual world. In the UW chapter, the world government developed a device called "SAO"(Text To Speech device) that allowed ordinary people to enter the virtual reality world for experience and activities. However, due to the lack of security in the SAO system, some players abused the SAO system to establish their own "domain"(domain refers to some special virtual reality space similar to a small world) and began to carry out various criminal activities and violent acts. In order to solve this problem, the world government launched an action called "Project Ugio" aimed at developing more advanced virtual reality technology and the security of the SAO system to protect the safety and interests of people in the virtual world. The protagonist, Kirito, as a well-known player in the world of SAO, also participated in this plan and risked and fought with other characters in an attempt to stop criminal activities and save people in the virtual world.