By this point, Lu Ban had roughly clarified his current developmental train of thought.
First, he needed to prevent those sealed beings from his own world from being awakened. As for why this world held so many slumbering Ancient Overlords, Lu Ban had two explanations.
One explanation was that this world was very special, perhaps deep at the core something was sealed, and all the Ancient Overlords had come chasing after higher knowledge and Pollution only to fall into a trap and get sealed themselves.
The other explanation was that this world was actually quite common, and the number of Ancient Overlords far exceeded Lu Ban's expectations. It was like the sun; at first glance, the sun seems unique and powerful, but in reality, every star in the sky is a sun, and the number of Ancient Overlords in Lu Ban's world was just average—nothing extraordinary.