Huge shout out that if you are going to be in Japan, you need one of these cards. I had thought I could just buy a two day pass in Tokyo. Which, you can, but you are almost certainly going to be limited to what routes and lines you can use, then. Which is brutal when you can't tell google maps which card you have.
What happened to buying a single ticket at the station, when you need one? That's what I did when I was in Tokyo, but it was a long time ago
tbh if you only stay in Tokyo then the combined Tokyo subway pass (Tokyo Metro and Toei Subway) is the best all around deal, you don't need anything else. ¥2000 for 72 hours
https://japantravel.navitime.com/en/
Allows you to specify up front what passes you have, worked brilliantly on our honeymoon, especially when figuring out which Shinkansen reservations we needed to make.