Do international CC's work on JP eShop or is it like PSN where we need to buy cards? This looks really nice
They blocked the majority of cards from working on overseas eShops.
We know they didn't do this with 3DS, they obviously still don't want people buying games cheaper from another country even though the Switch is region free.
So you have to resort to buying eShop cards preferably off AmazonJP since you can get the code sent by email.