At present, Zhou Tian and his team are somewhere unsafe due to their previous actions. It is presumed that if Zhou Tian dares to show up in any of those safe zones, a monster attack is likely to commence. Clearly, under those conditions, before the injuries of the King-level monsters had healed, they wouldn't be able to fight against the Saint-level Undead.
Thus, since they couldn't fight these Undead, Zhou Tian and his team could only operate outside. Although they have continuously encountered attacks from those Undead, the weakening effect of the Undead Domain has now allowed them to fend off the attacks by rotating their assaults on the Undead.
Just before, although the Undead were constantly attacking them, candidly speaking, Zhou Tian and his team's actions were not affected in any way. If no accidents happen, those sporadic Undead attacks wouldn't pose a threat to Zhou Tian and his team.
