It’s Item 18 on page 28 of the plan.
– A unified system to which every one subscribes
– A minimum pension of 70,000 yen. So probably similar to the American system where original contributions count for more.
– A “passbook” with a record of contributions. In the States, you get an annual notice.
So pension coverage (and pension payments) as a part of being here in Japan is coming. You can listen to the Japan Probe BBS pension-dodger crowd or whichever. But I’m telling you, paying in is going to be part of things for foreigners here, just like it is everywhere else in the modern world.