C4746 Daoist Taibai's Plan

For an existence of Immortal Lord Jing Tai's level, it might be difficult to concoct an Immemorial Yin Yang Immortal Pill, but it was not impossible.

In two to three hundred eras, Immortal Lord Jing Tai and the others might be able to refine one.

In other words, Immortal Lord Jing Tai had also refined several Primal Yin Yang Immortal Pills over the course of countless years