Qing Xiuxin said, "Let's steady them first, and then make further plans. If we were to kill them all right now, would they still show up?"
It was a delaying tactic—first steady those running dogs, and once they all gathered and willingly walked into the trap, it wouldn't be too late to deal with them slowly.
As long as the seal of the Demon Realm remained unbroken for a single day, they would be cut off from the outside world.
Chapter 1037