C201 Rapid Improvement

This time, Mu Sheng could clearly feel that it was not as easy as activating the kidney. After all, he had been cultivating for a while during the Qi Gathering stage. Although there were small fluctuations when he circulated the kidney, it was nourished by the Spiritual Stone and the spirit medicine, and it could reach its peak very quickly. As for the heart fire, it was not the same