Before the End, I Obtained the Supreme Practice Method

At the end of Blue Star, more than 90% of humans have turned into zombies, but is it just a game played by unknown forces? Lu Jin knew the information about the doomsday three months in advance and obtained the cultivation techniques, but he had no money to stock up on supplies? Apply directly for supermarket warehouse management. I am a cultivator and can survive a single shot. Now it's up to you. The protagonist kills decisively, does not kill indiscriminately, is not a virgin, has a golden finger, is not systematic, non-traditional apocalyptic, talks about underlying logic, is more fantasy, and gradually unlocks the world view as the plot unfolds.