Although we'll have to be careful to make sure not to cave to any British demands for extraterritoriality from here on in.Eh, fair enough, you make a good point. The free travel is hardly dangerous, as long as Japanese law still applies to them while they're in.
[X] Plan: Royal Demeanor
Don't love free travel, for the reasons above, but pledging eternal peace seems like the kinda thing that leads to further demands of British control. Free travel just means we have to make it very clear it only applies to freeports.
The Japanese party stands firm on the nation's diplomatic independence, arguing that Japan is too far and too small to be of any concern to His Majesty.