  We study the effects of a finite quark mass in the hedgehog configuration in
the two phase chiral bag model. We discuss the chiral properties, such as the
fractional baryon number and the chiral Casimir energy, by using the Debye
expansion for the analytical calculation and the Strutinsky's smearing method
for the numerical computation. It is shown that the fractional baryon number
carried by massive quarks in the vacuum is canceled by that in the meson
sector. A finite term of the chiral Casimir energy is obtained with subtraction
of the logarithmic divergence term.
