Consequently, as the host's internal energy continuously drains away, their cultivation realm will steadily plummet until they are reduced to an ordinary person. Once deprived of this internal energy, the "Vitality Gu" will return to a state of suspended animation, posing no further threat to the host's life.
This was exactly why Chen Feiyu had introduced the "Vitality Gu" into the "Soul-Returning Pill" when he was unsure of who the Long Family intended to awaken. It ensured that while the target’s life would be spared, they would also be unable to pose a significant threat to him.
Thus, the "Vitality Gu" is a parasite specifically designed for martial arts masters. The stronger the opponent, the more tyrannical the effect of the Gu. Conversely, if he had chosen to add a lethal poison to the "Soul-Returning Pill," it might not necessarily have threatened a Xiantian-level expert like Long Jingyun.
Chapter 664