感麺道
Kanimiso ramen?
The "miso" in question is another word for the brains. Crustacean brains are amazing, rich in umami, with an almost creamy taste. Growing up in California, I remember my family cooking freshly caught dungeness crab, and throwing away anything that wasn't normal crabmeat. I was young, and consider this a form of culinary abuse.
The ramen here is topped with Shanghai mitten crab and snow crab. Blend that with a simple katsuo-rich soup and you have a unique, only-one style ramen at Kanmendo. Of course, this shop is in Takadanobaba, one of Tokyo's most famous ramen battle zones. So while this one is decent, it's probably a ways down on the local list.