The last person who had planned to make a move within the domain of the Spirit World lies beneath grass that's several meters tall by now, and this time someone plans to act, the outcome remains the same.
"Who knows where they come from, not even properly informed before coming here, and still wants to make a move, not knowing that the Three Counties is a renowned forbidden martial zone?"
The descent of the Spirit World wasn't long ago.
But some of its reputations had already spread far and wide, such as the prohibition of martial activities within the Three Counties; anyone who took action would mysteriously disappear, never to be seen again.
Some even used this place to escape pursuit.
Of course, there were also the thoroughly evil who came here, trying to evade their crimes, but such people were generally killed by the local forces, and the Spirit World wouldn't take any action.
That's how the forbidden martial zone was formed.