7 Year Pension, Leaving Country

First, thanks for the helpful insight on my post yesterday. Leaving the country is complex and this group is a great resource for understanding the process.

I've paid into the national Japan pension system and a DC plan at work for seven years.

Can I get 100% of the amount back if I apply for the lump sum refund? If not, what percentage is eligible for refund?

If I decide to keep the pension in Japan, what do I need to be aware to access the funds in 20-30 years? I don't want to miss out on ever getting the money again one way or the other.

by SevenSixOne