Gu Kai, a top international agent, is proficient in fighting, blasting, driving, medical and other martial arts, but he can't even cook instant noodles. During a mission accident, he traveled to the world of martial arts and couldn't speak the language at all. What's even more outrageous is that he has become the "real young master" of the wealthy Gu family who has been living abroad for eighteen years - and there is already a much-loved "fake young master" in the family. Gu Kai was taken back to the house as a mute and a fool. The maids and servants all laughed at this true young master who could not take care of himself. However, when an evil martial arts master slaughtered the Gu family, Gu Kai smashed the mountain gate with a punch. Everyone was horrified: He obviously didn't even know how to wear clothes! The "Absolute Simulation" of the golden finger is turned on, and any move can be copied perfectly after just one look. Language barrier? He spoke with his fists. A waste of life? The enemy teaches you how to be a good person. Let's see how the all-powerful loser can take back everything with his strength and make the fake young master kneel down and call him brother.