Did the Japanese stay in China after the defeat of Japan?

There are many Japanese staying in China, and there are basically four kinds of people:

First of all, many people (mainly abandoned children or orphans) in the "Pioneer Group" in northeast Japan (the colonial institution of the Japanese, which immigrated Japan to northeast China to strengthen colonial rule) and similar institutions later became China people (through local China people) after China War.

Secondly, in Guanzhong area, many secret service agencies have become "China people". Even before the war, he obtained the identity of "China people" under different names, but it was not exposed. It is estimated that the number of such people will not be less than that of the first person.

The third is the Japanese army, which was reformed by the National Government after the war and later took part in China's civil war (the War of Liberation). For example, at that time, Wang Yan Xishan of Shanxi was controlled by the "death squads" and so on. After the civil war, the organization was partly destroyed, partly repatriated, and most of the rest became China people.

The fourth is a Japanese soldier in wartime. During the war, some of them gave up their original Japanese nationality, joined China nationality and became China people, either because of just aggression after education or because they actively defected to the anti-Japanese armed forces.