Fang Yu thought about the Heavenly Stepping Ladder.
"The Divine Race in the Red County Star Domain generally departs from Xin Yu via the Heavenly Ladder to directly reach other civilizations. If we destroy the Heavenly Ladder, wouldn't that mean they can't reach Earth?"
"Are you saying you plan to destroy the Heavenly Ladder?"
"That's right. These past two days, I've also discovered the basic secret of the Heavenly Ladder through some indirect investigations. The Heavenly Ladder is essentially a cross-space link between Star Domains, symbolizing a cultivator's ability to engage with highly advanced technology. The construction time for the Heavenly Ladder takes at least 300 years. These 300 years involve no acceleration or conversion, but rather a solid 300 years. This includes obtaining various materials and arrays for the Heavenly Ladder. If you factor in the time to prepare the arrays and materials, it is more than 300 years."
