JR West will release new three deals in March, 2015. Hiroshima Yamaguchi Area Pass is one of these three deals. This is the first pass that cover only Hiroshima and Yamaguchi, and Shinkansen to Hakata. If you arrive in Fukuoka airport and only stay in Kyushu but want to travel to Hiroshima, this pass helps you. It is the perfect option for the trip to Hiroshima from Hakata, Kyushu.
*This deal will be sold until February 28, 2015 and can be exchanged until May 31, 2015. On March 1, 2015, this deal, Sanyo Area Pass will be replaced by Sanyo Sanin Area Pass, Kansai Hiroshima Area Pass and Hiroshima Yamaguchi Area Pass.
This pass covers Kyoto, Osaka, Kobe, Himeji, Hiroshima, Miyajima and Hakata. You can take any trains in the coverage area with a few exception. If you will be a temporary visitor, you are eligible to purchase this deal.
If you have round trip from Osaka to Hakata, this pass is much cheaper than single fares. But if you travel outside of Kansai area or just go to Hiroshima, you may consider other deals.