It's a great dream Mara! I have wanted to visit Japan for as long as I can remember. I often wonder if it would be possible to someday live there. It's seems as though my daily responsiblities keeps me from going or making a true commitment to visit.
I work in the IT field so I often hope that someday I will work for a company that does a lot of business in Japan and that I will then have the opportunity to go there.
Good luck with your dream!