Underneath the modern bustling cities lies a set of "jianghu order" that is independent of the rule of law system. There is no fantasy ability to fly to the sky or escape from the earth, only fighting techniques passed down for centuries, a sophisticated network of underground forces, and rules of the world based on morality and interests. Jianghu forces are divided into three categories: one is the long-established martial arts schools/sects (such as Xingyimen, Wing Chun Tang), which adhere to the bottom line of "chivalry" and take it as their own responsibility to protect the peace of one party and inherit their skills; the other is the underground forces entrenched in the gray areas of the city (such as demolition companies, underground casinos, logistics gangs) The factions) rely on violence and profit to maintain their operations. They are destroyers of the order of the world and the main obstacle to the growth of small people; the third is neutral individuals/organizations in the world (such as antique restorers, information brokers, and arbitration associations). They do not participate in factional battles, but influence the direction of the world at critical moments.