[xiaoselangone]

You get a working visa with the help of a company that you work for, but since your spouse is Japanese, I would imagine that you would have a different kind of visa if you go. Just check with immigration and tell them you will be looking for work and make sure that you can work on whatever visa you get because of being married to a national. If not, you just put in an application to change over to a working visa or get whatever permission you need to work. It's quite easy if you have legitimate work.

We went to Japan so my wife could study Japanese there for a year. She had a cultural visa, and I had some form of spouse visa (ie, i was just tagging along) but I couldn't work. After half the year and money got tight, I just went to immigration, filled out a form and I had permission to work 25 hours per week. As I said, it's really easy with legitimate work.

As for what to do...

As a last resort, you can teach English. It fills time and gets some money. You could register with talent/model agencies. No joke! They like foreigners in shows and commercials so with no real talent, if you are punctual, and if they like your appearance, you go to auditions, get rejected a lot but get some jobs in and you can earn as much as $1000 for one days work just by walking around or saying one line in a commercial. It's kinda fun too.

Or if you want to stay in your current career, once you are there, get intensive Japanese lessons, build yourself to a certain level of fluency and then apply for jobs in your actual field. You can get real, non english teaching jobs there, but you need to have some fluency. A year is not unrealistic to learn enough language to be ready for job interviews if you put in the effort.