Eating at Mutsumiya is like taking a trip to Hokkaido, an island in northern Japan. The place serves the classic Hokkaido miso-based ramen, created with water brought over from Hokkaido. The shop is located on the Tokyo Ramen Street, a collection of ramen restaurants in a basement hallway of Tokyo station. It’s a great place to taste a traditional Hokkaido-style ramen without leaving Tokyo.
Tokyo Ichiban-gai B1, 1-9-1 Marunouchi, Chiyoda-ku.