This new (July 2017) branch of the popular sake-specialty bar in Azabu-Juban offers a very extensive selection of craft sakes along with richly flavored sake-compatible dishes. Luxurious ingredients like truffles, uni and foie gras seem to be favorites of the kitchen. Budget around Y8000 for dinner with drinks.
This book will introduce you to more than twenty of Japan's favorite specialty foods that are less well known abroad, along with a guide to the best places in Tokyo to try them and expert tips on what to order. From Bento.com.