do i need a JRpass for my itinerary?

Hi,

Thanks for reading my post. My itinerary is as follow:

Arrive at Osaka Airport then
3 days in Osaka followed by
3 days in Kyoto then
3 days in Hakone then
5 days in Tokyo
Departure from Tokyo Airport

So for my partner and i, we are not going back to Osaka Airport. Should we still buy the JR pass?

Thanks,
Cindy