This article examines the Japanese government's 2010 decision to exclude Chōsen schools (Chōsen gakkō) from its Tuition Waiver and Tuition Support Fund Program for high school education (Tuition Waiver Program). It introduces the perspectives of groups supporting the Chōsen schools as well as those seeking to exclude Chōsen schools from the Tuition Waiver Program. By tracing the historical background and trajectory of discrimination against ethnic Koreans in Japan, it shows that the exclusion of Chōsen schools reflects the continuation of Japan's intolerance toward the ethnic education of Korean residents, particularly Korean residents affiliated with North Korea, since the colonial period, which hinders the nation from becoming an ethnically inclusive society.