Namba Sennichimae Kamatake Udon Yaesu Kitaguchi is on the first floor of JR Tokyo Station near the central passage, in the Yaesu North Exit area of Marunouchi, Chiyoda City. It serves udon with chewy noodles and toppings of fried fish cake and egg. The signature udon comes with fried fish cake and onsen tamago, and the broth can be ordered hot or cold. There was no wait at 4 p.m. on a weekday, but the wait reached one hour at lunch on weekends, and the tables inside are closely spaced.