Originally Posted by
paperwastage
When you use TTP machine to enter, the visitor entry is printed on the rear of TTP card (no passport sticker).
You have to enter japan to do secondary, so it still won't solve the current problem, and an airline can deny boarding with no space left (though i've never seen one actually check my passport that closely)
Originally Posted by
paperwastage
Downside = some retailers may not be familiar enough with the TTP card and deny tax-free.
I was able to use it at any place I went to for tax free, including a train hobby shop. You still need to have your passport, but every place accepted the TTP card, though some places (looking at you donki) needed some prodding.