The couple reappeared inside the mansion after resolving Sirius von Shaka's case of possession. No building in the residential area was destroyed, and everyone was happy about it. However, they would have never expected that the young lieutenant who loves to help people would be taken over by those unknown beings and disposed of by the lords.
Of course, there is also a part of the tragedy in this case; after the earthquake, the two wardens and the two systems, together with the soldiers, had once again dug out that underground cave and tried to salvage the bodies in it. Those who had lost a child or a family member found their families among the corpses and were crying in despair upon seeing their loved ones end up merely as a piece of skin.