Chapter 212: This Child Is Not a Concern
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Prince Liang Wu, over seventy years old this year, had a cultivation level of just the initial stage of Foundation Establishment—built up purely through the use of resources, just like his elder brother, Liang Chun.
In the Cultivation World, advancing to each major realm requires surviving the Heavenly Tribulation in order to gain recognition from the Heavenly Dao and permission to ascend.
So, while there's only one level between the ninth level of Qi Cultivation and the initial stage of Foundation Establishment, from level 9 to 10.
The difference in lifespan between the two, due to the Heavenly Tribulation, is almost threefold.
However, the lifespan of someone in the initial stage of Foundation Establishment compared to someone at Foundation Establishment Great Perfection isn't nearly as disparate.