Zainichi Korean; Korean resident in Japan
Refers specifically to ethnic Koreans who came to Japan during the colonial period (before 1945) and their descendants, often associated with those holding North Korean nationality (Chōsen-seki). Compare with 在日韓国人, which typically refers to South Korean nationals.
See also: 在日韓国人
Zainichi Koreans often refers to people who came to Japan before and during the war and their descendants.
He values his identity as a Zainichi Korean.