I am sorry for them. There is a US territory, Guam, 3.5 hours from Tokyo where anyone with a valid passport and visa or visa exemption can travel to. A negative test is all that is needed to enter now and one can have their choice of US FDA approved vaccines. The time zone is convenient, +3 hours for work or to avoid jet lag. Yes, there is an expense involved including the flights and accommodations. I have been back in Thailand now almost 8 weeks since my 2nd Pfizer shot in Guam and I highly recommend either the bargain flight of Zipair to Tokyo, US $180.00, or the regular ANA flight, and then a transfer on UAL. One can 1 day and receive the J&J vaccine or 17 days and receive Pfizer or longer if one choices Moderna. If the Philippines were open that would be a cheaper solution, but Manilla is still closed.
Either way, to wait and pontificate when or if you will receive the vaccine or your country will or should provide the vaccine is fruitless. Move forward. Don't wait for others to provide. They generally, with the exception of family or friends, will not do so.