https://en.m.wikipedia.org/wiki/Slavery_in_Japan

According to the Korean historians, approximately 670,000 Koreans,
were conscripted into labor from 1944 to 1945 by the National Mobilization Law.

[38]About 670,000 of them were taken to Japan, where about 60,000 died between 1939 and 1945 due mostly to exhaustion or poor working conditions.

[39]Many of those taken to Karafuto Prefecture (modern-day Sakhalin) were trapped there at the end of the war,
stripped of their nationality and denied repatriation by Japan; they became known as the Sakhalin Koreans.
[40] The total deaths of Korean forced laborers in Korea and Manchuria for those years is estimated to be between 270,000 and 810,000.[41]

日本人による民族浄化が書かれてるな