The ruler of Nod. They are not elected, not appointed, and not answerable to anyone. Nemo does not govern, legislate, or negotiate in any meaningful way. On the rare occasions when it acts, the action is immediate, overwhelming, and final. The few times Nemo or its agents have intervened in the affairs of the Council, the replacement council's first order of business was cleaning the remains of the previous one off the walls.
Most residents of Nod will never see Nemo or its Eidolons. Most will never need to. Its power is atmospheric, embodied in the Tower that rises from Lake Enoch at the city's center, a pillar of silver-veined black stone stretching into a sky with no visible summit. Whether the Tower is Nemo's dwelling or Nemo itself is a question that the city's theologians have argued for millennia without resolution. The Tower's single door has not opened in living memory. Its walls bear reliefs that appear to record the history of the Domain in images that grow smaller and more detailed the higher one looks, though no one has observed high enough to read anything close to the present day.