hi
Our itinerary is over 7 days:
22/12 Osaka to go to Universal Studio a day trip to Hiroshima then to
25/12 Kyoto
28/12 Tokyo - planning to go to Disneyland and explore areas in and around Ginza, Shibuya and other stations
This is our first time in Japan. Can you recommend what train tickets is best for us, how / when to reserve seats / day trips around Tokyo.