While The Zen is billed as a shochu dining bar, they also offer a reasonable selection of premium sake. Shochu really is the star here though, and the knowledgeable staff can help you navigate the 250 varieties on the menu.
The food is well prepared, with drink-friendly fare like fresh-tasting anago eel tempura, grilled chicken with black pepper, and miso-glazed saikyo-misoyaki fish. Budget around Y3000-5000 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.