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Traditional martial arts are in decline, and in the future world "clients" are respected. Each government is established in the name of eradicating cholera from the rivers and lakes. There are many government systems, and grudges are gratified. Drawing a sword is a life, and wandering the rivers with a sword to cut three inches of mortal silk. Zhou Ran sells all his family wealth to be promoted to the rank of disciples but cannot be reused. Where should he go?