  The vector manifestation (VM) is a new pattern for realizing the chiral
symmetry in QCD. In the VM, the massless vector meson becomes the chiral
partner of pion at the critical point, in contrast with the restoration based
on the linear sigma model. Including the intrinsic temperature dependences of
the parameters of the HLS Lagrangian determined from the underlying QCD through
the Wilsonian matching together with the hadronic thermal corrections, we
present a new prediction of the VM on the direct photon-$\pi$-$\pi$ coupling
which measures the validity of the vector dominance (VD) of the electromagnetic
form factor of the pion. We find that the VD is largely violated at the
critical temperature, which indicates that the assumption of the VD made in
several analysis on the dilepton spectra in hot matter may need to be weakened
for consistently including the effect of the dropping mass of the vector meson.
