Many of the arrays are like the array that protected the energy spring of Reinfield City. They will block any sort of influence from interfering with the house, including the power of the domain of nobles.
This kind of array is very expensive and very powerful. The nobles of Reinfield City could only afford to put it around their prized possession. But this demigod undying is wealthy enough to have many of them and put them around a whole mansion, not just an energy spring.
The demigod had been able to afford this kind of expensive protection because of his long life. Now Legion will get to enjoy the safety that he established and even use his divine flesh to advance.
They gained access to his mind and harvested some of his memories when he died, so they know how to operate the arrays, check them for faults, and put them in maximum security mode to completely seal the mansion from entry and exit of any kind.
