Thanks for the intel.
Now that you brought up Kemuri, the taste did taste familiar, though I haven’t been back to Kemuri for a couple years now so didn’t make the connection at the time.
Even the udon options at Kemuri look exactly the same- oxtail spicy or non-spicy, dipping, and ikura:
ABC says Taka and Uzumakiya are run by the same people.

