Isesada Ikekuburo Branch is a freshwater eel restaurant on the eighth floor of a department store near Ikebukuro Station in Tokyo. Its signature dish, unagi donburi, pairs soft eel with a lightly applied tare sauce. The eel is grilled after ordering and takes about 20 minutes, and diners can add tare and sansho from the table. The food is fine, but the prices run high.