Offering high quality soba straight from Nagano (where they have another two branches) this place is a treasure trove. Soba, tempura and duck are reliable highlights and the lunch-sets are great value. The lowest costs just and comes with four appetisers, soba, vegetable tempura and dessert. Follow the steps down to the basement and prepare for a most affordable feast. There is a second restaurant in Aoyama too, if you're closer to that side of town. Menus are available in English but there is no list available (it is a flight of stairs below street level).