One of the best parts about the Nintendo Switch is that it’s region-free; this means that you can import games from Japan that didn’t make it to North America or Europe. The easiest way to do that is to simply download the games from the Japanese eShop. This guide will walk you through how to get a Japanese eShop account on Switch.
Head over to accounts.nintendo.com in your web browser and log out if you’re already logged in. Create a new account and fill it out like you normally would, except you’re going to use a different email address and you’re going to set your region to Japan. The email address you use doesn’t have to be in Japanese, but it does need to be a real address and different from one you’ve already used with Nintendo.
Create a new account on your Switch. You can name it anything you want — I just named mine “Japan.” During the account creation process, you’ll be asked if you would like to link a Nintendo Account to this new user. Link the Japanese account that you just created.
Alternatively, you can link the account in the profile settings under System Settings > Users.
After the account is linked, your Switch will ask you to enter a confirmation code. This code will be sent to the email address that you used for the Japanese account. Enter the code to complete the linking process.
Whenever you want to access the Japanese eShop, just boot up the eShop on your Switch and select your Japanese account. Most North American credit and debit cards won’t work on the Japanese eShop, however; I would highly recommend buying Japanese eShop cards from Play Asia to make your purchases.
You only need to use the Japanese account to access the eShop — not to play the Japanese games that you download. In other words, I used my “Japan” account to download Monster Hunter XX Nintendo Switch Ver. from the Japanese eShop but I use my North American “Carl” account to play it.