C1256 Boundary seal upgrade 3

With regards to the changes in his power, Ling Feng's senses were extremely strong. Even if there were any slight fluctuations of energy within himself, Ling Feng would be able to easily perceive it, let alone the changes after a huge increase.

Weng! *

After using a quarter of an hour to get used to his new strength, Ling Feng sensed the Seal Space in the depths of his soul with his mind. Then