I will travel to Japan for 7 days during July 13-19. My schedule is
July 13-15 .. In Osaka (use train for travel inside Osaka)
July 15 .. from Shin-Osaka to Shibuya Tokyo by train
July 15-19 ... In Tokyo (use train for travel inside tokyo).
I need some advice to purchase train tickets during my trip. Which way is the best choice in term of money & time? Does Japan have one ticket/ pass that can be used both in Osaka & Tokyo & traveling from Osaka to Tokyo? Can we buy it online?