If you can, do a bike tour in Tokyo or Kyoto. It isnt exhausting but is a great way to see the city.
Onsen. If you don't have tattoos be sure to enjoy them. If you do find a public one.
Pachinko. Absolute great way to lose 1,000 yen.
The golden temple in Kyoto is cool, but there are like thousands of temples. Find some and enjoy.
In Tokyo visit the tsukege fish market. Amazing food and perspective on culture.
Ramen. Best after a long night drinking.
If you have not booked arrangements stay in a Ryokan. Service is top notch and the experience will set a great tone for the trip.
If you are a weeb go to a maid cafe in tyoko. Play all the games and drink all the drinks and go along with whatever they suggest.
Trains. Everyone else was right.
Baseball was an awesome idea.
See a gheisha perform in Kyoto.
Idk. Have fun I guess
Nice. Good update. Thanks. Time does that to me