Yin Bianyun, a decathlon super genius, can build rockets and repair toilets, but he is a top-notch disabled person who cannot even cook instant noodles. One day, he accidentally activated the "life exchange system" and actually exchanged bodies with the evil martial arts master "Blood Hand Human Slaughter" who was feared in the world! In an instant, the leader of the martial arts alliance turned into a talkative king who only knew theory but not practice, while the evil villain wore Yin Bianyun's shell and used high-tech means to cause trouble in the city. Yin Bianyun was forced to step into the crisis-ridden world, relying on his theoretical knowledge to practice his peerless martial arts into radio gymnastics, causing countless jokes. And the villain occupying his body is trying to conquer the world with his omnipotent skills. In order to change his body, Yin Bianyun had to take the "self" who couldn't take care of himself, and embarked on a ridiculous counterattack journey amidst pranks and chaos.
