Originally Posted by
nishimark
Just to be clear, you will have two full days in Japan? And you're arriving in and departing from Osaka? If so, I recommend getting a hotel in Osaka, then go to Kyoto for a full day (30 minute train rain from JR Osaka station) and spend a day wandering around Osaka. You'll have no time for Tokyo. Here are some websites to give you ideas.
https://www.japan-guide.com/e/e2157.html
https://www.japan-guide.com/e/e3950.html
I can spend as many days as I want, in Osaka, I just have to be there for a particular meeting. So I could split it up with x days here, and x days there. Then I have to go to Hong Kong.