We are planning to go Japan this April from Kansai airport. We have not been to Japan so will like to cover more ground but not sure if more time needs to be allocated to osaka/kyoto/nara？
We are considering：
stay 4 nights in osaka and explore kyoto n nara.
stay 1 night in hiroshima
stay 3 nights in hakata n visit nagasaki n mt. aso
stay last 2 nights in osaka n explore the city.
also， any must see places that i shouldnt miss？
Thanks in advance！