The ghost qi could not be suppressed, and that was one thing.
Before the two could show any further concern, the man before them directly drew the ghost qi into his own body.
Not long ago, when Jiang Feiyun had been healing his injuries, Wei Di had used a similar method under his guidance.
The difference was that the troublesome thing inside Jiang Feiyun's body had been the strange poison rooted within the ghost qi.
Once the strange poison was removed, a little ghost qi was nothing to worry about.
But the ghost qi within Jiang Feixue's body was far more abundant than imagined, and countless times more troublesome.
His heart leaping into his throat, Jiang Feiyun instinctively thought of the method Wei Di and he had just used to reconstruct a physical body.
Yet as the thought flashed through his mind, he immediately realized that method was simply not feasible.
Ghost qi differed from strange poison. Once it entered the body, even if suppressed, it was difficult to say whether it could be confined within the flesh and blood, or to any single part of the body.
Just like now, the ghost qi inside his younger sister had been suppressed until it could only occupy thirty percent of her entire body.
Yet that thirty percent was tangled throughout her body—in her flesh and blood, true essence and cultivation, even her own vital essence, energy, and spirit.
It was like a clear spring changing from near-total murkiness to one where only thirty percent of the water remained muddy.
But even if it were only ten percent, the clear spring would still be polluted.
No matter which part was discarded, it would not resolve the root of the problem.
Drawing a deep breath, Jiang Feiyun's gaze rested on Su Shi'er. His