The organization known as the Cleaners always hides behind the scenes and never comes out without reason.
When Gao Yang and the Cleaners were in the early stages of their relationship, the Cleaners' work was mostly about destroying evidence and eradicating all traces of crime. In simple terms, they were specialists in cleaning up messes.
But when Gao Yang's relationship with the Cleaners advanced to a higher level and he became a VIP member, the services he received naturally expanded. They upgraded from post-event cleanup to proactive measures to neutralize threats at the earliest sign of a crisis.
If Gao Yang or Satan encountered a crisis detected by the Cleaners, the Cleaners would immediately take defensive measures. Once those measures were put into action, it meant the firewall had been activated.
