  We study the anisotropic properties of dynamical quantities: direct current
(DC) conductivity and butterfly velocity. The anisotropy plays a crucial role
in determining the phase structure of the two-lattice system. Even a small
deviation from isotropy can lead to distinct phase structures, as well as the
IR fixed points of our holographic systems. In particular, for anisotropic
cases, the most important property is that the IR fixed point can be non-AdS$_2
\times \mathbb R^2$ even for metallic phases. As that of a one-lattice system,
the butterfly velocity can also diagnose the quantum phase transition (QPT) in
this two-dimensional anisotropic latticed system.
