Just like the information on the human-skin parchment.
In the next few days of experiments, Yang Jian didn't achieve any greater breakthroughs. It seemed like the time limit for sealing the Yin Yang Path reached its maximum, which could at most be maintained for thirty years. Afterward, no matter how much Yang Jian tried to overlay the Ghost Domain, there was no way to exceed this limit, and the subsequent experiments were less successful each time.
Zhang Xiangguang also noticed the problem, understanding that Yang Jian's Ghost Domain had reached its limit and couldn't be extended further.
"Thirty years is not bad. I think we can start executing the plan." Although it didn't reach the expected outcome, thirty years of peace was still precious.
If Yang Jian is still alive after thirty years, they could just do it again.
