The lifespan of a cultivator increases as their cultivation stage advances.

High-level cultivators, over the long years, have already honed their combat skills and divine powers to a high level when their cultivation stage was lower.

When they have more leisure time and feel bored, they delve into the Hundred Arts of Cultivation, gradually reaching higher proficiency in these arts.

Thus, among Guo Feilong's wives and concubines, who are descendants of the Integration stage Elders from the Celestial Palace Holy Land, only six have reached the level of grandmaster-level alchemists in the field of elixirs.