How can I gain Japanese citizenship by heritage?

My great grandmother was Japanese but left Japan after the war and I grew up in Vietnam. Is there a way for me to claim Japanese citizenship through my maternal heritage?

Answers

Masahito Nakai

Nakai Immigration Services LPC

On Masahito Nakai answered:

You, unfortunately, are not able to gain Japanese citizenship only on the grounds of heritage. However, you will be entitled to an application for naturalization to Japanese after a 5-year legal stay as a fourth generation Japanese. You can apply for a
designated activity status under your heritage. Unfortunately, you cannot acquire Japanese citizenship on the grounds of
pedigree alone. However, after staying legally for five years as a fourth-generation Japanese, you will be given the right to apply for naturalization as a Japanese. Since your great-grandmother is Japanese, you can apply for a
designated activity status.