C3903 The Energy Attribute of the Altars.

"Now, I see."

Gu Xuan looked at the sky, his gaze seemingly able to penetrate through everything and look into the eyes of the Thunderbolt Immortal's Residual Soul.

Unfortunately, he had no way to resist.

Gu Xuan raised his chin and quickly thought about it.

The seven Inheritance Altars in front of him didn't seem to be much different on the surface