Ji Yuanlong could believe in the existence of geniuses in this world, but even geniuses, being human, are incapable of dealing with the Golden Silkworm Gu, which only an Immortal could manage.
There is no antidote for the Golden Silkworm Gu, nor is there anyone who can undo the terrifying effects of the Golden Silkworm Gu through other means.
Ji Yuanlong was utterly convinced of this, having searched for decades for something that he had originally intended to use only at the last moment against an unbeatable foe. However, due to Yang Fan's appearance, he had no choice but to advance his plans and use the Golden Silkworm Gu on the woman Ye Haitang.
It was all this woman's fault for not recognizing what was good for her; despite all his scheming, he couldn't make her agree, so his only option was to destroy her.
Moreover, since this woman had broken the shrine in the Baili Family's ancestral hall, Ji Yuanlong was left with no other choice.