In the underground space beneath Beast Town, Su Xiao did not summon the "Awakening Stele" here. Aside from the risk of it being damaged, improving Blue Steel Shadow's abilities was completely different from using the "Origin of Strength" to devour abilities.
Moreover, the "Skill Upgrade Pod" itself had powerful defensive capabilities. Even if an enemy attacked, it could withstand them to some extent, not to mention that the Lord's Train outside provided another layer of protection.
The safe zones certified by the Tree of the Void in this world sounded promising, but based on Su Xiao's experience, they were usually buildings no larger than a few dozen square meters. Furthermore, once the natives of the world entered such a safe zone, it would immediately become invalid. Only after everything calmed down would it become a safe zone again.
There had once been a Contractor who tried to exploit a safe zone and kill a boss-level enemy by slipping through its entrance. In the end, the safe zone temporarily contracted until it was only large enough to protect a vending-machine-sized World Store. The building's metal door was smashed through by a minor boss, and the several Contractors trapped inside died horribly.
Besides improving Blue Steel Shadow, Su Xiao also needed a sufficiently safe place to bring Ayesha and Delona over. To be clear, this was not to protect them, but to prevent their abilities from causing large-scale distortions of destiny and attracting the attention of other peak powerhouses.
The peak powerhouses had far too much experience. If they discovered that Su Xiao had brought the Warm-Bed Daughters into this world and then considered that he had sealed multiple Sin Objects, they might really deduce that his sin karma was about to erupt. If that happened, things would become disastrous.
Apart from