By doing so, they had indeed achieved a peaceful coexistence.
The ghouls had kept their promise all these years.
This excluded some ghouls who had been expelled from the clan or had betrayed the clan and would also appear in the five countries.
Everyone else was well-behaved.
As for the five kingdoms, they followed the agreement and sent their criminals from to the ghouls' territory.
However, after so many years, the laws of the five countries had deviated.
At first, the five countries should have made an agreement to send the most heinous criminals of each country to the Great Desolate Prison.
Subsequently, the Great Desolate Prison had unknowingly become the largest place of exile for the five kingdoms.
"All these years, apart from Emperor Wu'an, the other four countries have treated the Great Desolate Prison as a place of exile."
