Immortality and cultivation begin at age forty, starting with Foundation Establishment.

He transmigrated to the world of cultivation and joined the Xuan Yang Sect.
Since embarking on the path of immortality, Chen An's Dao heart has been steadfast. He has diligently cultivated the art of killing and seized resources from rogue cultivators to enrich himself.
How difficult is foundation building?
Cultivate a cauldron from a young age, using the peak primordial yin energy to break through bottlenecks and increase the probability of foundation building.
What if one has poor talent for alchemy?
Train a talented maidservant, support her with plundered resources, and obtain cheap cultivation pills.
At the age of forty, Chen An killed many cultivators of the same level in the sect's trial grounds and obtained the Foundation Establishment Elixir.
Seize the pure Yin energy of the furnace, step into the Foundation Establishment realm, and embark on the path of cultivation!
(Ordinary person, no system, not a saint, intelligent, decisive in killing)