As a top killer, Xiao Yin is innocent and harmless on the outside, pure and straightforward on the inside, and does not understand the sinister nature of people's hearts. He has reached the pinnacle of killing skills with one hand, but he repeatedly runs into obstacles due to his simple nature. He accidentally awakens his own golden finger, and is accompanied by a spiritual pet who understands human nature and understands words and emotions, silently assisting him all the way. In the city, ambitious and talented inventors run rampant with all kinds of advanced inventions, treating human life as nothing, and causing frequent disturbances. Xiao Yin, who did not understand the rules of the world, lost his youth and ignorance with the guidance and companionship of his spiritual pet, and embarked on the road of growth step by step. He is not familiar with politics, but he uses his hard power to push through all conspiracies. He does not love power, but in order to protect the people around him, he is a crazy villain inventor. From a simple killer alone to a strong man in charge of his own business, Xiao Yin, with his cute pet, made a passionate counterattack in the bustling city, crushed the villain's conspiracy, and lived out his own edge.
