The goal cannot be simply summarized as [searching for 'Earth King's' descendants].
More accurately, it should be to find and cultivate the 'true Earth Ding' with the ability to embody a unified group consciousness.
As for whether it is truly a descendant of 'Earth King', it really isn't important. It only requires potential comparable to the 'Earth King'.
Of course...
Anybody knows that using a method of exhaustive selection is undoubtedly the clumsiest method.
Therefore, throughout these years, not all other scholars haven't made other attempts.
Since the core racial skill of the 'Earth King' has the effect of unifying the consciousness of all aggregated and assimilated 'Earth Ding'.
Then, even if the rest of the 'fake Earth Ding' lack this racial skill, the ability to aggregate and assimilate with 'Earth Ding' is no different.