Not recomend
There are contract foreign pilots working in Japan.(AJX APJ FDA etc)
Believe or not… Do no work for airlines in Japan.
Working condition is terrible there and contract is not strictly follow.
At first glance, their packages are attractive but it is not…
Probably very conservative and narrow mind culture will frustrate you a lot.
Many of first officers are inexperience graduates who got into airlines through unfair connection of aviation universities and designated school so you have to deal with those people who think they are elite…That is an issue and foundation of really conservative culture here. You will be frustrated at the end..