C156 Psychic Wonderland

Ying Xue's Heavenly Marrow Heart Mantra was a miraculous inner breathing technique. Not only was it suitable for humans, even the elves who had never trained in it wouldn't be able to produce any resistance to it, but now that Hua Xi Chun had opened up the meridians that she had not opened for hundreds of years, it was truly an unusual difficulty. In this aspect, Ying Xue was quite experienced