Baek Yoon Shi is a former professional spies. He used to be known as weapons of mankind laude. To cover up his past, he bought a bar called Neighborhood and self-employed. At long in this neighborhood, he was exposed to many indigenous people, he gradually empathize with their pain. Baek Yoon Shi met a young man, who is doing temporary staff at the bar. This guy wants to become a police officer. Baek Yoon Shi training him as a secret agent and fight crime together.