It turned out that those three fifth-tier individuals really were the last strength of the Kingdom of Hanhai. Throughout the Imperial Palace, no other dangers were found. As for the members of the royal family, only a part were here, and they had already given up resistance.
Another portion had vanished without a trace, their whereabouts unknown.
As for the remaining people, Du You eventually decided to banish them after some thought, without killing them. It wasn't that Du You didn't want to kill them; it was because keeping them alive held no significance - they were mostly elderly, weak, and children. The youth had been sent away earlier, it was perhaps better to spare them to maintain a good reputation for himself.
As for the possibility of treasures on their person, Du You didn't care at all. Seated on a world, with Earth at his back, would Du You care about such wealth? He was only interested in things that were useful to himself.