Blue explained the Automated Fighting System while watching the beasts subdue the monster on their own.
The Automated Fighting System was designed by the developers so that the players could grind even if they went online. An AI would take over their characters to control the beasts while they were away.
Although it was a system made by the developers, this feature could only be accessed after the players could get their 2nd Role Promotion, although they could get the feature, they couldn't access it if they don't have the prerequisite to activate it.
The prerequisite differs, depending on the clans that they were affiliated with. Some needed to gather some materials to access it, some needed to capture some beast, and some needed to reach a certain place before they could access the feature.