Originally in Green Emperor's arrangement, after they returned to this era, they could prepare their plans and reclaim their authority.
But when he truly returned, he found that the changes in this world were too great, completely different from his expectations.
Indeed, as in the original deduction, this is a flourishing era, an era where one can achieve the immortal path and eternal longevity, but the emergence of so many powerful figures in this era was beyond his predictions.
In the future he deduced and foreseen, this era should have been one where True Immortals held authority, and by relying on their own formidable foundation, once they returned to this era, they could ascend to the peak.
But what are Taoist Monarchs, and why are there existences even stronger than Taoist Monarchs? Their existence was not included in Green Emperor's deductions.
