Urban martial arts + time travel + decisive killing + cultivating immortals and refining alchemy + pretending to be a pig and eating a tiger
Ning Cheng is a master of alchemy in the world of immortality.
By chance, he made a magic elixir.
The emergence of the divine elixir caused changes in the world.
Accidentally opening the space barrier, he traveled to a world full of supernatural powers.
Others rely on exercise to level up, while he relies on taking elixirs to level up.