Usually, Koreans living in Japan, even if they were born there and lived there for generations, continue to suffer discrimination no matter what they do. And in some cases, even if one of their parent is actually Japanese, it still doesn't matter. In some fields, employers will demand to know your "family tree" in order to assess your ancestry. To be fair, the same process can also discriminate against some Japanese if it is deemed their ancestry is not as dignified as it should be. The practice is rare these days but still exist. And Chinese do not need to adopt Kanji for their names because their names are Kanji to begin with.

Granted, despite both being Kanji, the difference in name is immediately apparent in most cases akin to Spanish and French surnames, both using alphabets but with distinct and striking differences.
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