"This poison is colorless and difficult to discern. Even when dissolved in tea, it's hard to notice. Only by carefully smelling the strange scent in the tea can one detect the subtleties within. Once this poison enters the body, it becomes fatal to a martial artist at the Spirit Martial Realm level."
"How so?" Jin Cheng was shocked and eager for more information.
Yang Chen said with a solemn expression: "Since this poison is called Cui Ling San, it's because it prevents martial artists from refining spiritual energy and integrating it into their body. Without refining spiritual energy, they naturally cannot convert it into True Qi and improve their martial arts cultivation. A master in the Spirit Martial Realm relies on the spiritual energy of Heaven and Earth as sustenance. Young Master Jin Cheng, if you haven't consumed spiritual energy for years, your physical condition would naturally become abnormal and uncomfortable."