A friend is attending university in Japan for a year from September, based in Fukuoka. My husband & I will visit in November and want to make the most of our first trip to Asia. We will have 19 or 20 days in total, probably spending 5 or so in and around Fukuoka with our friend. We also want to see Tokyo, and we have been looking at Kyoto, Kyushu Island, Hiroshima and Osaka also. If there is an option to take in a few days in Hong Kong or Singapore en route, we would be interested in doing this also. Basically we are looking for advice on what is feasible in the time we have, and also if we are making good choices of places to visit.
I appreciate this is quite an open question but am grateful for any advice.