Are Japanese Koreans descendants of the first immigrants from China? Are we related by blood?

There is no direct evidence to prove that Japanese \ Koreans are directly related to China people. Historians have confirmed that Japanese people developed from primitive humans in the Japanese archipelago, including Chinese mainland people (mainly from the Qin Dynasty) and some people from the Korean Peninsula. The Japanese should be a hybrid. Japan, South Korea and China belong to the East Asian race, but they are not the same ancestor. At least they are not ape ancestors. Chinese mainland culture has exerted a great influence on the Korean Peninsula, but it is undeniable that each nation has its own unique cultural characteristics. On this issue, we can only say that the ancient Japanese culture grew up with the ancient mainland culture of China as the milk. The important historical exchanges between China and Chinese mainland were caused by three historical wars (Qin Shihuang unified six countries and three kingdoms, 10, five dynasties, Southern and Northern Dynasties), and the official exchanges were mainly concentrated in the Sui and Tang Dynasties. At the end of the Tang Dynasty, Japan basically gave up the absorption of Chinese mainland culture and began to develop its own national culture. Later, he began to absorb western learning (that is, orchid learning introduced from Holland at that time) until the end of Qing Dynasty in China. Then China students introduced western learning from Japan (don't despise it, that's the truth, at that time, most western learning was introduced from Japan), and many famous scholars, including Lu Xun, had very deep academic exchange feelings towards Japan.