Fantasy: Write Bugs Before Cultivating Immortality

First there is Pangu and then there is heaven. After writing the bugs, you can then become immortal! If the system is compared to this world, I am the founder of this world. Cheng Xu is a programmer. As a programmer for a game about cultivating immortals, there are always bugs. What should I do if I can't fix them? It doesn't matter, just travel back to the game. Suddenly one day, Cheng Xu woke up and actually traveled to the world of immortality, which was created by his own team. Well, this time the bug came in handy. [Game + Fantasy + Funny + Cool Article]