"Tachinomiya" are standing-only bars. Usually a lot cheaper than a regular sit-down izakaya (Japanese bar/pub). Usually no-frills, and serving traditional, simple izakaya food. Traditionally popular at day's end for working men, there are some around these days which are perhaps a bit more up-market and trendy. This isn't one of them.
I apologise in advance if I'm tardy with commenting on your blogs or returning comments during the week... I will get to you though!