Su Chen knew that something similar to a "seed" was growing inside Lin Ruoxue, which could emit an extremely cold and negative energy, and this energy also possessed "devouring" capabilities; it had once "devoured" the True Yuan he had transferred into Lin Ruoxue's body.
He had thought about removing the "seed," but unfortunately, its energy was too powerful, beyond his capabilities.
Therefore, he had to give up, planning to wait until his Cultivation was high enough to remove it.
But now, with time pressing, he could no longer afford to wonder aimlessly, so he immediately sat by the bed, then took out the longest Silver Needle, and pierced it directly into Lin Ruoxue's chest cavity until the needle was fully inserted, after which he slowly withdrew it.
After withdrawing the Silver Needle, he first observed it, then put it to his nose and sniffed lightly, immediately a thick layer of coldness appeared on his face!
"It turns out to be Hemlock Mustard!"