  We propose a chiral quark model including the $\omega$ and $\rho$ meson
contributions in addition to the $\pi$ and $\sigma$ meson contributions. We
show that the masses of the ground state baryons such as the nucleon,
$\Lambda_c$ and $\Lambda_b$ are dramatically improved in the model with the
vector mesons compared with the one without them. The study of the tetraquark
$T_{cc}$ is also performed in a coupled channel calculation and the resultant
mass is much closer to its experimental value than the result without vector
meson contribution. This approach can be applied to the future study of
multi-quark systems.
