Travel Plan and Which Pass?

Q. Kyushu rail pass plan

I am planning to visit Kyushu using a Kyushu rail pass in May for 4-5days. I want to visit Mt Aso area but not sure where else I should go. Can you help with the itinerary? My flights arrives Fukuoka on 14th May in the morning.

faq here is our suggested itinerary for using Northern Kyushu 5day pass (¥9,000)

Day1: Fukuoka airport – (6mins) Hakata - (113mins) Nagasaki
Day2: Nagasaki – (120mins) Aso
Day3: Aso - Kumamoto – (67mins)
Day4: Kumamoto - Yufuin
Day5: Yufuin – Hakata

And here is for using All Kyushu 5day pass (¥17,000)

Day1: Fukuoka airport – (6mins) Hakata - (84mins) Kagoshima-Chuo
Day2: Kagoshima-Chuo – (50mins) Ibusuki – (120mins) Kumamoto
Day3: Kumamoto – (67mins) Aso
Day4: Aso - Yufuin
Day5: Yufuin – Hakata