I recently had to travel to Japan. In this country, it's easy to understand that things we're used to at home operate by their own rules here. Paying with a card at a cozy cafe? Not guaranteed. Wi-Fi on the Shinkansen? A real problem. And English doesn't always save the day. Even before my flight, I was trying to figure out these intricacies and came across an article called  How to buy eSIM with Japanese phone number . I found a ton of useful information in it. These tips came to me at just the right moment. In the end, the trip went much more smoothly because I knew what to do if something didn't go according to plan.