C2342

From Bi Yao's description, Xiao Tian deduced another way to use the Boundary Monument. However, he still needed to verify this conjecture, so he needed Xiao Feng to try it out.

As for why he chose Xiao Feng over Lin Jingyu, or why he personally tried it, it was naturally because Xiao Feng was more stable than Lin Jingyu. In comparison, his soul was too powerful