how do you guys make a living in japan?? do you guys just teach english or something?? i got a japanese passport and my japanese is pretty good but i dont know what kind of work i could get if i lived there considering my kanji comprehension skills are that of a 3rd grader
I work at a hospital and do freelance translation work.
Most people I know work as English teachers and if you find an okay school you can make some decent scratch. I know some people who have been here for years and don't speak read or write Japanese. So as far as being an English teacher that's not really a requirement, and daily life is pretty navigable without it. With that said it is definitely a plus when searching for work to know the language, otherwise you limit yourself. As an aside, I personally believe one should at least be making the effort to learn the language of the country you are living in. That's just common courtesy in my opinion.
If you have a passport I assume you have dual citizenship, in which case that'll make finding a job a whole metric-fuck-ton easier. You shouldn't have any trouble finding something. Most places don't want to be bothered with the paperwork involved visa sponsorship. And if you are Japanese/SE Asian in appearance you won't have to deal with a lot of the bigoted/xenophobic bullshit the rest of us do.
FYI best times to find work are the end of the fiscal year (most contract end in March and renew in April) and around September (6 month contracts end in August and renew in September).