Starting from April 1st 2026, people will be required to live in Japan for 10 years instead of 5 to qualify for Japanese citizenship.
My mother is a Japanese citizen but I was born abroad. She never reported me to the Japanese embassy so I wasn't able to retain my Japanese citizenship nor am I in any koseki. However, I heard it's possible to sort of add myself in the koseki, which can be used as proof of descent. That would help bring down the years required to be in Japan from 10 to 3 years. Is that all possible?
by Japonika_1868