Historical China is a country with strong attraction and radiation ability, which is not only reflected in the many cultural wealth we have inherited, but also in the history of many surrounding countries and regions and the inextricable entanglement of Han culture. Especially after the Western Han Dynasty, the opening of the Silk Road allowed more surrounding areas to have commercial routes with the Central Plains, and the connection between the two became more and more frequent. In the eastern coastal zone, there are also many small countries that cross the ocean to learn culture in the Central Plains, such as Japan.

Although the country of Japan is not large, but it has existed for a long time, as early as the island has not yet formed a unified regime and country, the fishermen living here have come to China by sea, since the Han Dynasty, the exchanges between the two have not been interrupted. Of course, at the beginning, it was our Han culture that attracted them to constantly send people to learn and imitate, especially the influence of Confucian culture on it was more profound, until now there are many architectural styles related to Han culture. As for the cultural influence of writing, customs, clothing, etc., it is not to mention.
However, this cultural and commercial connection developed to the later mutual, that is to say, when the Ming and Qing dynasties were relatively prosperous, many Chinese merchant ships also began to sell goods to Neighboring Island Countries such as Japan, because the natural environment at that time was relatively harsh, many people could not return smoothly after leaving, and have been stranded in the local area ever since. Since then, the Western powers have also seen huge business opportunities in this, and have tricked many Chinese laborers into smuggling them to Japan to do hard labor, so that more and more Chinese people live here.
In recent years, there has been a rather strange phenomenon, that is, many Japanese people have come to China to "recognize their ancestors", from the initial individuals, individual families to the later entire large family, including more and more groups, so that in just a few decades, millions of Japanese people claim to be descendants of the Chinese nation and apply to be accepted by the Chinese family. What is the reason for this phenomenon? Are these people really descendants of our Han ancestors? Why do you apply for ancestor recognition?
The first time this happened was in 1979, when a Japanese named Tsutomu Menda came to China to look for his ancestors, because he had come up with enough evidence to get the Chinese family's recognition. However, as this phenomenon of ancestor recognition becomes more and more extensive, it has attracted the attention of many people. After detailed research, the relevant parties discovered the mystery behind this. If it is understandable that Chinese to Japan and reproduce for some special historical reasons, the return of millions of people is somewhat outrageous.
The reason behind this is alarming. It turns out that some ancient civilization sites have been found in the deep sea around Japan, and these sunken human civilizations are revealing a terrible prediction that the archipelago may one day repeat the mistakes of history. Therefore, many Japanese people want to use this excuse to get involved with the big Chinese family, hoping to get China's protection when disaster comes one day. Do they want to be able to achieve it?