The power of innate limit

After enduring the pain and neutralizing Phoebe's attack again, Alexander Xu's strength was almost drained out, and even standing seemed so difficult.
However, just when he thought he was going to die in this foreign country, a familiar yet unfamiliar feeling suddenly appeared in his mind. This was the realm that he had just touched the threshold of before. It was a feeling that was completely different from the innate power.
All the strength seemed to have returned to his body. The difference...