  We study bimetric gravity through the context of the AdS/CFT correspondence,
especially, in the first order hdrodynamic limit. If we put pure general
relativity as a bulk field, the boundary field theory is interpreted as fluid
of the N = 4 supersymmetric Yang-Mills plasma. The transport coefficients of
this plasma are computed via the AdS/CFT correspondence. Then, we prepare a
pair of gravitational fields on the bulk side and let them interact. We expect
that two-component fluid emerge on the CFT boundary side because the number of
metrics becomes double. However, the situation is rather complicated. The
interaction generates a massive graviton. This massive mode leads to the extra
divergences which are absent in the case of general relativity. Our first
investigation is how to cancel these divergences. After that, we see the
emergence of two-component fluid and calculate their pressure and sheer
viscosity. The interaction makes two kinds of fluid mixed and the sheer
viscosity obtain slight correction dependent on the mass of a graviton.
