One of the older bars in Tsukuba, it is run and owned by Shingo. It has a very casual atmosphere, good for meeting friends and talking late into the night. In recent years the food has become really good with Shingo constantly updating the menu. Shingo speaks great English and will happily chat with customers seated at the bar.
It is a kind of cross between a Gaijin bar and a Japanese bar (a Gaijin bar full of Japanese people). If you know how to play Japanese Mahjong, lots of players are available to take your money.
EDIT: As of spring 2015, this place is still banging.
20:00 'til late
Open every night