I am thinking of using JRPass but I don´t know if I will be saving, or if I should be using another pass. I will be in Japan from January 12 through January 22. I plan on doing these train trips the fastest way so I dont lose time for sightseeing. My itinerary is:
Arrive at Narita
12-15 Ueno Tokyo
19-21 Kawaguchiko (to see Mount Fuji and maybe Fuji Q if its open)
Depart at Narita
Thanks for your help.