Your earnest wish will come true for sure. And he'll be able to come home and be with all of you.
I wanted to work in Jap before too . If you haven't tried it yet, maybe you can learn basic Japanese like Hiragana and Katakana, and some phrases to improve employment chances.
Gambatte ne. Yorshiku.
がんばってね. よろしく.
Yes. Some agencies require their applicants to study Japanese langiage after being hired. So I am trying my luck as soon as possible. :)