Suggest u go for the lunch set, it's generally cheaper
But popular ones are mostly fully booked
Get your hotel to help u book
Enjoy!
Do you know if any can be booked a day in advance ? Or require to be booked months ahead ?
My friend who work in Japan say Mouriya is good http://www.mouriya.co.jp/en/mopr/
But I nv try before so can't comment
A week I suggest
I tried to book a day or two before but was out of luck