Hello there,
I will be there for 14days but I don't think the national Jr Rail pass would be worth for this trip. Alot will be day trips with main hotels/Stays being in Tokyo and Osaka. I think maybe a couple of regional passes may cover it but looking for advice.
Haneda>Tokyo area>Yokohama/Yokosuka(Day trips)>>Osaka>Kyoto/Hiroshima/Nara daytrips>back to Tokyo and Haneda.
Thanks!
Jade