170 The Bloodstone armor! Body hardening technique Level 6

Hard qigong (compatibility: 99%. [ cultivation progress: 100% of 5th grade. ]

After refining Two Spirit raising pills, su Jie managed to improve his body hardening technique from 20% to level five peak within a month.

A spirit raising pill was indeed comparable to the growth of a mortal martial artist's power after ten years of bitter cultivation!

"The body hardening technique has reached the peak of the fifth level, and there's no more room for improvement. If I can make it break through its limit and enter the sixth level, it will definitely produce a qualitative change! Let's take a look at Gao Xiong Ying's Iron Skin technique. I hope it will give me some inspiration."

Su Jie thought to himself.