HELP: 12 Day itinerary

Hello there,

The 7 day JR Pass would work very well here if you use it from day 4 - 10, this way all your pricey rail travel is covered and you'll only need additional tickets for Tokyo. The pass is about the same price as a normal return ticket Tokyo - Osaka using the Shinkansen, now you ge 7 days of unlimited travel or the same price.

As for Fuji, there are different ways to visit Fuji. I would recommend reading this website from Wiki Voyage to get oriented.

Hope this helps,
Daniel

Thank you so much, Daniel!