What about in Kamurochō AKA Kabukichō district of Tokyo
Japan's capital city, Tokyo, has so many minorities, including Zainichi-Koreans, Chinese, Russians, Filipinos, Indians, and Jews.
There are only 2,000 Jews living in Japan, making Japan to have the highest population of Jews, out of all every nations in Northeast Asia, and also, same with the Muslim Malaysian, or Bengali population, which is a very tiny little minority, representing less than 1% of Japan's Population, and also ethnic Russians living in Japan, who are descendant from the Christian Russian Refugees who fled to Japan from the Bolshevik Revolution, they are a smaller minority, about 9,000 of them(Ethnic Russians) living in Japan.
Tokyo is a melting pot of several ethnic minorities, mostly Zainichi minorities, such as Russians, Koreans, Mongols, Chinese, Filipinos, Malaysians, Arabs, Indians, and Jews.