Imperial Japan annexed the Empire of Korea in 1910 as a critical step in the colonial project that would eventually lead to its alliance with Nazi Germany and fascist Italy. Over a million Koreans would be conscripted as slave labor for Japan's war effort—not counting the hundreds of thousands of women forced into sexual slavery for the Japanese army. Lee Chun-sik, now in his nineties, was one of the many who were forced into slave labor. Lee did grueling and dangerous work at a steel mill in Japan, receiving no pay, little food, and regular beatings. In 2005, Lee and three other former forced laborers sued Nippon Steel & Sumitomo Metal Corporation, the successor of the wartime steel mill, in the South Korean courts after losing an earlier lawsuit they filed in Japan. In October 2018, after a long legal battle, Lee prevailed in the Supreme Court of Korea. After 13 years of litigation, Lee is the only one of the plaintiffs still alive.
The suffering of Lee and many others is historical fact. But if you went by the Japanese government's hysterical reaction—accusing its neighbor of "trying to shift South Korea's responsibility" over the wartime forced labor—you might think it was Korea that was the villain of this story. Following the Supreme Court's decision, Tokyo has threatened to recall its ambassador to South Korea, levy sanctions against South Korean exports to Japan, seize South Korean government property in Japan, and reintroduce visa requirements for visiting Korean tourists. Japanese Foreign Minister Taro Kono even demanded South Korean President Moon Jae-in intervene with the Supreme Court's decision—a ridiculous request to make against a constitutional democracy that mandates separation of powers.
The rest go into basically a legal argument about why Japan's argument is just a bunch of BS, but I thought this was interesting since the second paragraph just reads like Japan's Government completely lost their shit.