Obtaining your, and your parent(s), vital records
Vital Records are birth, death, marriage, and divorce certificates. Graduation certificates are not Vital. In order to become a national of Japan, Japan will need to create a family unit register ( 戸籍 { koseki } ) — even if you have no known family inside or outside Japan — with information regarding: your marriage(s) and possibly divorce(s) your dependents (children, including adoptions etc) your legal spouse your date of birth your parents their full names, converted to Japanese: probably カタカナ { katakana } (Japanese syllabet) but possibly 漢字 { kanji } (sinograms) depending on their nationality records their birth certificates proving their names and existence their death certificate, if applicable their marriage and or divorce certificates, if applicable their dependents (all known children) Because the Ministry of Justice needs this very official domestic proof of Japanese nationality to be as accurate as possible, they will want to see official documentatio...