I'm planning a 14-day visit to Japan, during which time I would like to fly to South Korea for a side trip (some 4 days).
Will I experience any problems trying to re-enter Japan, few days before flying back to UK?
All within the 90-day period, due to the length of the trip... but is one not supposed to not return to Japan, for a period of time, after departing for the first time (to South Korea in my case)?
I hold a Polish/EU passport, but I suppose the same would apply to most countries.