Immortality: Devour the Horned Viper at the beginning

Li Bufan never dreamed that when he woke up, he had just paid off his mortgage and got a promotion and a salary increase, and he would be able to catch the train...
"I'm going? Others who traveled through time were either young sect masters or young clan leaders, and I'm actually a fisherman? Less than half of the fish I caught was left in the hands of Boss Yu!"
Skyfall begins, and let's see how Li Bufan, with his hard work and a "little" golden finger, embarks on eternal life step by step.
ps: All astronomy, the main world is the eternal world.
Adorable new author, be gentle with your words