Did Korean nationality change from China to China?

If you are not a citizen of China, you are definitely not from China. Even if you are Han nationality, you can only say that you are from China.

In English, Chinese refers to a nation rather than a country, Chinese refers to a China, and Korean refers to a Korean rather than a Korean. If you are Korean, you have to say that you are Korean.

You said that a pure Russian from China emigrated abroad, but he said that he was from China instead of Russia. Foreigners should not go crazy.