C121 Nine tail ejaculation
The Nine-tailed Fox's life was miserable, she had experienced too many painful things, so her resentment was huge. If the Soul Devouring Parasite had no use, then the Sis Xiaomei would probably be dominated by the Nine-tailed Fox every now and then.
However, I do not know about the detoxification Gu, nor do I understand the Soul Devouring Parasite. This Gu is not as effective as it was before