My hope for the future is to someday live in San Francisco. One day, I was having a chat over the Internet with a Japanese who is living in the States. I'm just a kid, and I've never thought about being discriminated against before. It really got me worried. I'm sure it exists.
Prejudices are everywhere, and moving to a foreign country is difficult in the first place.
You are bound to run into some trouble here and there. Some people will have prejudices, but not the majority. You might run into people that you don't get along with, or people that just don't want to give you a chance, but I'm sure you run into some of those people in Japan as well. Just prepare yourself for the few ignorant racists you might meet, and you'll be fine. Racism is one of the most negative aspects of humanity, and most Americans really do feel that is true.