The Minister of Justice may permit the naturalization of an alien who is the spouse of a Japanese national notwithstanding that the said alien does not fulfill the conditions set forth in items (1) and (2) of paragraph 1 of Article 5, if the said alien has had a domicile or residence in Japan for three consecutive years or more and is presently domiciled in Japan. The same rule shall apply in the case where an alien who is the spouse of a Japanese national has been married with the Japanese national for three years or more and has had a domicile in Japan for one consecutive year or more.