What kind of culture is Yayoi culture in Japan?

Around the third century BC, Japanese history entered a new period of development. Because in the ruins of this period, a large number of new-style pottery which is more advanced in technology than the pottery of the rope-grain era has been found, with the same shape, simple patterns and beautiful appearance. Because this kind of pottery was first discovered in Yayoi-CHO, Tokyo, it was named Yayoi-style pottery. Until the second century, this generation was the Yayoi era, also known as Yayoi culture. In addition to Yayoi pottery, the main features of this culture include the popularization of rice farming, the application of metal tools, the emergence of classes and regional countries. The bronzes in the Yayoi period were also imported from the mainland, which were used as various tools at first, but later only as sacrificial utensils or people's favorite treasures, and gradually formed the Kitakyushu cultural circle centered on weapons such as bronze swords and the Guinei cultural circle centered on bronze priests. The general view in academic circles is that Chinese mainland was in a period of unification and rapid collapse of the Qin Dynasty at the end of the rope pattern era and the beginning of the Yayoi era around the third century BC. In order to escape the war and the tyranny of the Qin dynasty, residents fled in succession, and the well-known folklore that Xu Fu led many boys and girls overseas to look for fairy medicine also happened during this period. Around A.D., regional small country groups began to appear in advanced areas such as Kitakyushu and Muli. In order to enhance their own strength and authority, these small countries consciously interact with the powerful mainland regime. In this era, there are 8 to 14 generations of emperors recorded in Japanese ancient books, namely, filial piety, civilization, respect for god, benevolence, success and Emperor Chuai (in fact, they are all false, and these are all made up by the Japanese who are over 100 years old).