Chapter 493 - Shocked Oni King
Once again every Warrior becomes active inside the kingdom. After leaving the Royal palace they already started searching inside the human Kingdom for those humans who could also use the dark spiritual energy. Naturally only those people participating in this mission could use techniques like spiritual vision in this matter because other than that type of technique they won't be able to find those people.
That does not mean those other people won't be able to help. Right now they also have the responsibility to observe the situation of all the people inside the human Kingdom. with that if they suddenly found some suspicious people they should immediately react and silently capture those people. With that they should not alert those other people.