There'll be a Sake Festival at Oi(Oimachi) Food Shop in Hankyu Department Store (Oi-Shokuhin-kan in Hankyu Hyakkaten). It's from January 23rd to 27th (1月23日（水）～1月27日（日）). On 23rd, 24th, 25th it's from noon to 8 p.m., and on 26th and 27th it's from 11 a.m. to 8 p.m.
There'll be 12 Sake breweries from several part of Japan. The event is targeted for both Sake fans and beginners (especially ladies who might have never tried Sake before), about 120 kinds of Sake will be there. They'll serve you sample Sake for tasting.
I recommend Akabu Brewery from Iwate since it's near my hometown. They are trying hard after damage caused by earthquakes in 2011 as well, and most importantly they've managed to make great Sake! Refer to the links below if you are interested:
Akabu Brewery (English Intro.)
Akabu Brewery (Official Web Site, Currently Only in Japanese)
Oimachi Food Shop (Google Map)
Oimachi Food Shop Event List (Only in Japanese)
Posted by takeshi at 4:00