Etsuko, born to japanese immigrants, was sent back to japan for her schooling. if she returns to the united states after completing her education, she is a "kibei".
Kibei, if we look at its literal meaning it is "go home to America" and it was a term frequently utilized as a part of the 1940s to depict Japanese Americans born in the United States who came back to America in the wake of getting their training in Japan. Some Japanese Americans sent their kids, a significant number of whom had double citizenship, back to Japan, so the youngsters were instructed in Japanese educational systems and kept up the Japanese dialect and in addition Japanese social customs.