According to the Monster Power System, the death of minor monsters, even if they are junior bosses, does not have much impact compared to that of a Boss. As long as Zhou Tian has a sufficient foundation, no matter how many monsters die, he can replenish them in a timely manner. In this situation, although there were a few instances where the entire Beastman Large Army was annihilated in the process of reclaiming the Ancient Ruins Space, as long as not all Beastman Teams encountered such accidents, then the current one or two setbacks were simply not enough to make Zhou Tian at that time give up his arrangements.
Thus, under Zhou Tian's arrangements, although a certain cost was paid, the Ancient Ruins Space that had been occupied by Pan Shi and others was also mostly reclaimed by him using the current method at that time.