Withdrawal
Addiction withdrawal.
Something that happens in humans quite often. No matter what kind of addiction it is, it might be an addiction to drugs, alcohol, some types of food, mobile devices, music, movies. People could be addicted to anything and when they are taken off of that and the supply for any of their addiction was cut off, you would see a whole new side of that particular person.
We can see the behavior they never even exhibited. The bravest man will show fear. The strongest man will show weakness, the most loving person would show ruthlessness and the most restrained man will show recklessness.
And currently, Sam figured out that even a strong cultivator is not exactly an exception for this case.
On the third day in the newest settlement, the King has already killed four maids and a local woman who was selected for his orgy which didn't take place.