  Our knowledge about neutron star (NS) masses is renewed once again due to the
recognition of the heaviest NS PSR J$ 0952-0607 $. By taking advantage of both
mass observations of super massive neutron stars and the tidal deformability
derived from event GW170817, a joint constraint on tidal deformability is
obtained. A wide-ranging correlation between NS pressure and tidal
deformability within the density range from saturation density $\rho_0$ to
$5.6\rho_0$ is discovered, which directly yields a constrained NS EoS. The
newly constrained EoS has a small uncertainty and a softer behavior at high
densities without the inclusion of extra degrees of freedom, which shows its
potential to be used as an indicator for the component of NS core.
