Imperial Physician Song explained with a solemn expression, "Your Majesty, you may not be aware, but this parasite is known as Qingxin Gu. It exists as a pair, a male and a female. Based on what Your Majesty just described, the female parasite must be within your body, and the male parasite is likely within his."
Upon hearing this, Chu Yezhe felt a wave of helplessness and panic wash over him. He gripped Xie Qi’s hand tightly, his voice sounding as if it were being squeezed from his very throat. "What is the connection between the two?"
Imperial Physician Song hesitated for a moment before deciding to tell the truth. He sighed and said slowly, "Of the two parasites, one must suffer if the other is to be saved. If you wish to save him, the person carrying the female parasite must consume the medicinal catalyst; that is the only way he can recover. But if that happens, the host of the female parasite will suffer the onset of the affliction..."
Chapter 37