Unfortunately everything is booked
I’ll be there aug 2nd and I leave on the 17th
I leave the day before you arrive and get back on the 15th. If you're up for it I am open to do something on the 16th. What airport do you fly home out of?
The week of August 13 Japan's Obon holiday and a lot of people will be out and about. Not sure what your detailed agenda is looking like but there are a lot of great places to see in Kyoto and Osaka.
You are probably not going to blend in here so I wouldn't worry too much about that. Japan people are generally very friendly - Tokyo is considered one of the more conservative places but in Osaka you might notice you feel more welcome as there's a lot of trade history due to the ports around and could be considered a bit more internationally welcoming. I doubt you will really feel unwelcome about anywhere here as long as you are polite and don't do anything stupid like getting drunk and go running around, etc.
If you want suggestions on some landmarks to see I can make some recommendations based on your itinerary. I am not sure how flexible you will be to see any events - I can check and see if there are any car shows or events like that going on.
It is very much a sensory overload here at first so be ready for that.