It may be hidden in a far corner of the second floor of Tokyo station’s building (near the Yaesu north exit), but once you track down the Akita Pure Rice Sake Bar, you’ll decide it was worth the trip. The sips on hand are all prepared without any additives—hence, pure rice sake—and you can snag a taster set featuring one sake at 6-8 different temperatures selected by the in-house sake sommelier from ¥1,000. Nibbles include yakitori from high-end Akita chicken.
2F, 1-9-1 Marunouchi, Chiyoda-ku. Nearest station: Tokyo. http://r.gnavi.co.jp/g286919/lang/en/