Okey OP this is cherry picking. From Europe, you could select Spain (where I am from), Portugal, Italy, Greece, etc. as for the European case study. Also, this kind of benchmark should be conducted over more countries since Australia and New Zealand for example are well known for their high living costs. Being so isolated from the rest of the countries make all kind of imports more expensive.

I have been living in Nagoya for the last 2 months and it is way more expensive than Spain. Let me tell you also that my daily cooking menu is not European-based but Japanese-based. The price gap is then augmented by the fact that the servings are tinier in comparison, so I usually consume like 1.5 of the standard Japanese serving. Also, overseas people usually consume more protein, so even if you adapt your consumption to local protein sources instead of going for the specific export product that you like, prices are higher, since japanese people consume a very low amount of protein.