Relaxed and funny + vulgar development + modern knowledge dimensionality reduction attack.
The male protagonist's soul traveled through the world of immortality, bound to the [low-key development system], and brought with him a second-hand electric donkey with unlimited battery life. He relied on modern knowledge to deceive and make a fortune in a low voice. On the surface, he was harmless to humans and animals, but in fact, he was a sinister villain who was decisive and decisive in killing.