C2125 A Gray and Hazy World

After Lau Yiheng heard this, he rubbed his nose and said, "In other words, the barrier has a critical point. As long as we can confirm this critical point, we can go in, right?"

"You can say that, but it's very difficult to grasp this critical point. After all, we can't estimate how powerful those ancient almighty experts are. However, this barrier has a weakness."

After Lau Yiheng heard this