shoyu
Shio / Shoyu Ramen at 『 』in Kanda
Shoyu ramen (熟成練り醤油らーめん), with additional egg. At first, the soup is shio (salt) ramen. Then, you mix the ball to get shoyu (soy sauce) ramen.
Shoyu Tsukemen at Kumigi-to-Niku Mono-no-Ki in Shinjuku
Kotteri Shoyu Tsukemen, with additional half-boiled egg (for the noodles) and grated cheese (for the soup).