[ewolf]

What ethnicities/races are you talking about here in particular?

I suppose African-Americans will probably experience less animosity in Japan than in the US. But I think the ones subject to severe racism in Japan are rather other Asians, such as Chinese or Koreans.

Japan is a very ethnically homogenous country with almost zero immigration, and it is my understanding that that is due to the fact that foreigners are not very well accepted. Since people of different races hence represent almost negligible parts of the Japanese populace, you might consider it less of a problem than in the US, where racisms exists between citizens of the same state.

Disclaimer: I've never been to Japan, please correct me if I have the wrong impression.