summer travel to Japan with kids

Hi! we are so exited to go to Japan this summer, we want to maximize our stay, we will be arriving Narita in Jun 26 at 5:00 Pm and want to go straight to OSAKA to maximize our 7 days JR pass, but are unable to view train schedule to see if is posible or not? our plan is to visit OSAKA, KYOTO, HIROSHIMA NARA and TOKYO, what is the best schedule for us? also we are traveling with a 5 year old so for what I understood she does not need a ticket, correct? thank you so much for your orientation, as soon as we have this clear we will book our hotels :)