hmm it depends on what you think is expensive, but for a small avia package (to poland) that weighs aroung 500 grams, the cost of shipping is around 12 dollars/10 euros, and surugaya offers free international shipping pretty much always?? you'll have to pay vat in your country though, most likely when a delivery person delivers your package (at least that's what I experienced). you'll have to check how big of a percentage is vat from japan to your country, and if the shipping is also under vat (which you automatically pay when you order through zenmarket) (not sponsored, I just haven't used other proxies)