Nihombashi Unagi Isesada Honten is a freshwater eel restaurant founded in 1946, located across from Nihombashi Mitsukoshi in front of Mitsukoshimae Station. Its menu centers on unaju and shirayaki, with portion sizes set by the number of eel fillets and a choice of akamiso soup or kimosui. Orders take 20 to 30 minutes to arrive, and on weekdays the grilling can be watched through the glass of the fourth-floor counter. Prices are on the high side.