How can I apply for citizenship by descent in Japan?

My grandmother is Japanese, but she emigrated to Korea when she was young and had my father with a Korean husband and never renewed her Japanese documents after turning 32. My dad passed shortly after having me and didn’t get to apply for Japanese citizenship. Do I have right/route to claim Japanese citizenship?

Answers

Masahito Nakai

Nakai Immigration Services LPC

On Masahito Nakai answered:

As a descendant of a Japanese citizen, you can obtain a status of residence, and after living in Japan for a certain period of time, you can apply for Japanese nationality. Unfortunately, there is no way to recover Japanese nationality from overseas.