Namida ("tears") bashi is a simple shop tucked in on a street in Shimbashi south of the station near the KFC, advertising "old time natsukashi" shoyu taste. To me it was good but not spectacular. Crowded and sort of hot, however they are very friendly and will guide you to the machine and help you. Make sure to tell them if you don't want the katsuobushi on top. If you go I recommend going after 8 PM in order to be able to order the "mammoth" (マンモス) ramen, with better grilled pork and a tonkotsu base.