Currently about 1% of Brazil's population is of Japanese descent, representing a disproportionate amount of Japan's overseas population. How did this come to happen in Brazil specifically, rather than other south American countries or just anywhere else in general?
There's of course more ground for new answers to explore, but you may be interested in checking out this answer https://www.reddit.com/r/AskHistorians/comments/9l1aa6/what_is_the_history_behind_brazils_large_japanese/e73ld4j by u/BrasidasBlack from 6 months back, or other related answers you'll find by searching "japanese brazil".