Whom truely has the right of employment ?
As there would be those that believe anything management would tell you as a contractor, there may be as many as 1000 very experienced local airline pilots out of work for a very long time that could probably create an interesting time for the contractors.
Your issues for continued employment may include paying some tax bill that gets deliveried to you as you get off a flight for the time flying Japanese aircraft generating income, or some other government action which you will probably see just as amusing to your continual flying in Japan.
These unemployed professional Japanese airline pilots will make things financially interesting for those whom do not hold a Japanese passport and paying their taxes.