This restaurant is just down the road from my house in Ningyocho. It's the first evidence I've yet found that this part of Tokyo escaped the bombing to some extent during the war. The design is a wonderful mix of old Japanese and art nouveau with beautiful dragon's scale metal tiling that has rusted green. Tucked between nondescript modern brick buildings on the busy high street by Ningyocho station, it's very easy to miss. I'd rushed past it numerous times and only really noticed this wonderful design when I was taking a more leisurely stroll about. You have to stand to get a meal but, being so near Tsukji, the fish is very fresh and prices are incredibly cheap (me and my friend stuffed our faces and only paid 1,200 yen for the both of us). You also get free tea and miso soup.