Developing Essence was an ancient core drug. When Zhou Donghuang had obtained the recipe for it, he had already been a magnificent practitioner in the Heavenly Stage. Naturally, he had no use for this core drug, which was meant for Golden Essence adepts to take orally.
Furthermore, among the disciples he had taken in in his past life, during his time wandering the galaxy and the planets, the one with the lowest level of practice at the time was already an adept who had undergone Divine Transformation. So of course, they had no use for the Developing Essence either.
In his past life, Zhou Donghuang felt that he would rarely have use for the Developing Essence prescription, unless he suddenly had the impulse at some time or another, to take in another disciple.
However, before he could take in another disciple, he did not expect to reincarnate and go back 1000 years in time due to an accident and have to start all over again.
