Can't say about Peru, but the second and third generation Japanese community here in Brazil is massive and stories of some of them going to work/live at Japan are common.
Any anecdata about how open this is to neighbours of non-Japanese descent? For example if there are Japanese schools (are there?) do they admit lots of others, and do such students (or half- or quater-Japanese ones) get treated as insiders? I knew there was a huge community but know very little about it.
Don't know about japanese exclusive schools, Liberdade¹ is the biggest japanese community outside of Japan, but I don't think that there's any restrictions about students or anything like that in the schools of the district, Brazil has an immense amount of diversity, japanese brazilians are mostly treated the same as any other brazilians and are for the most part integrated in our country general culture.
