  We reinterpret Balents and Fisher's free 2d chiral metal [Phys. Rev. Lett.
76, 2782 (1996)] as a chiral $U(N)$ Wess-Zumino-Witten model at level $k = 1$.
Here, the $U(N)$ symmetry relates the $N \rightarrow \infty$ low-energy
excitations about the chiral Fermi surface. We obtain non-Fermi liquid
generalizations of the free chiral metal that maintain the $U(N)$ symmetry of
the $k=1$ theory by taking the level to be a positive integer $k>1$. We
calculate two-point correlation functions of the $U(1)$ number density and
current operators in these theories for general $k$. We find $k$ to provide an
overall rescaling of the amplitude of these correlation functions. This
construction illustrates the ersatz Fermi liquid proposal of Else, Thorgren,
and Senthil [Phys. Rev. X 11, 021005 (2021)].
