The descendants of Qin Shihuang, Gong Yuejun, are now renamed Haneda and Hado.

A large number of Han Chinese immigrated from Korea to Japan (including Gong Yuejun, the first ancestor of Shimadzu). During the reign of Emperor Xionglue (457-479), as many as 65,438+08,000 people immigrated to Japan. They are disseminators of mainland culture. At the end of the 3rd century, Dr. Wang Renbo of Baekje spread ten volumes of China's Confucian classic The Analects and one volume of Thousand-Character Works to Japan. In the 5th century, Japanese aristocrats were able to use Chinese characters well. In the seventh year (5 13) after the emperor ascended the throne, Baekje was asked to send sinologists who were familiar with Confucian classics to Japan on a regular basis, and then added experts in various fields such as doctor of medicine, doctor of calendar, astronomy and geography, yin and yang and five elements. In the Shoto Kutaishi period (593-62 1), overseas students were sent to China directly, and the Chinese civilization system was fully absorbed, which laid the foundation for the development of Japanese culture.

From these data, it is considered that the "original Japanese" (Japanese in Paleolithic Age) mixed with other nationalities who migrated from the mainland or Nanyang Islands after the rope-grain age, and gradually formed modern Japanese. Kenji Kiyono, a medical scientist, first put forward the "half-blood theory", which remained the mainstream of academic circles until the 1930s.

Later generations Gong Yuejun, now renamed Haneda and Hato.