Worth getting a JR Pass

We will be arriving and departing to KIX and would take a train to Osaka. During our stay we think of visiting Hiroshima, Himeij and Kobe.
Would it be worth getting a JR Pass and would all our above journeys be covered.
Thanks

A 7 day JR Pass won't pay off.

You could look into getting a 7 day JR West All Area Pass, though.

https://www.japan-guide.com/e/e2361_west.html

Depending on how you do Hiroshima, Himeji and Kobe, this pass looks like it'll be the best option.

Take a look at these options:
https://www.westjr.co.jp/global/en/ticket/pass/

JR Kansai-Hiroshima pass you be better.

When will you travel?
Have you decided the place to stay in Osaka?

JR-West Kansai-Hiroshima Area Pass would be suitable for your itinerary.

https://www.japan-guide.com/e/e2361_kansai_hiroshima.html
https://www.westjr.co.jp/global/en/ticket/pass/kansai_hiroshima/