In order for us to travel freely once in Japan, we purchased the Japan Rail Pass.
They came just a week after the order. It should be remembered that it can only be purchased outside of Japan.
In fact it is just a coupon to be exchanged within a train station, in a special office, for the Japan Rail Pass itself.
We have already booked your flights and accommodations, and now we also have tickets for travel.
Things start to become clearer.