So when you get married to a resident or are changing your surname what does your future identification say? Example, if you have say a swiss passport do you write your surname in romaji or do you need to go through a special process to get it in kanji? Same thing the other way round, if you’re half japanese and have a japanese / asian name and come to japan first time with an american passport (not visting. residing), are you required to write your surname in kanji or do you stick with romanization?
by goodohyuman