The article explores the identity and history of Koreans who migrated to Japan, known as Zainichi Koreans. The term was first used by the Japanese government in the 1950s to classify Koreans who did not have Japanese citizenship. There are two main groups of Zainichi Koreans - those from North Korea and those from South Korea. Some prefer to identify themselves as "Korean-Japanese," emphasizing their dual identity as both Korean and Japanese citizens. Despite being born and raised in Japan, many Zainichi Koreans face discrimination and prejudice due to their ethnic background, but they have made significant contributions to Japanese society through cultural endeavors such as music, literature, and art. The article concludes that acknowledging their identity and promoting greater understanding can lead to a more inclusive society where everyone can thrive.