C83 So Life and Death Are Lies

"Mental energy?" When Su Xiao heard about the Mental energy, his eyes narrowed. This Mental energy was related to his brain.

If one were to say that the consumption of the Mental energy was too much, the burden on the brain would be very serious, right? If that was really the case, then this Formation shouldn't be used randomly so early on.

"That's right. It's the Mental energy. Furthermore