The first time I met Koreans living in Japan was on Mt. Geumgang in 2002. They were “Zainichi” Koreans, who were moved (or forced to move) to Japan during the Japanese colonization. They said they have been to North Korea several times but never been to the South. I wanted to know about Korean residents in Japan, so I went to Japan to meet them in person. Having seen them for 15 years, now I learned the side of history of colonization and division that I never knew before. They explain why they are trying to live confidently as Koreans even when facing discrimination in Japan.