honeymoon trip

hi!
We are traveling for 1 month to Japan from Chile
our itinerary is:
tokio to nikko, day trip
tokio to kawaguchi, day trip
tokio to kamakura, day trip
tokio to nagano, one way
nagano to matsumoto, day trip
nagano to kanazawa, day trip
nagano to nagoya, one way
nagoya to takayama, day trip
nagoya to osaka, one way
osaka to himeji, day trip
osaka to nara, day trip
osaka to kinosaki onsen, one way
kinosaki to kioto, one way
kioto to hiroshima, day trip

do you recommend us to take de 21 days pass, to move around Japan??
any help is welcome