"The Unmatched in the World" is a vernacular novel compiled by Wu Echuan, an ancient master of the Qing Dynasty. "The Legend of the Unparalleled in the World" and "The Dream of Flowers, Part Two" have four volumes and sixteen chapters. It describes the grievances between Quan Yi'an and the prostitute Feiyan, and the main text narrates the grievances and grievances between Qian Baihong, Chen Yuquan and others. It expresses the moral concept mentioned in the beginning of the work, "If there is no distinction between grudges and grudges, how to repay kindness with kindness, it is the way of animals", and exhorts the world to be kind to others and to know how to repay.