  By using the overlap-Dirac operator eigenmodes, we investigate spatial
distribution of the chiral condensate around static color sources for both
quark-antiquark and three quark systems. In the presence of color sources, a
characteristic flux-tube structure appears among them, suggesting a linear
confining potential. We show that the magnitude of the condensate is reduced
inside the color flux, which indicates the partial restoration of chiral
symmetry inside the "hadrons." Considering a periodic box containing a static
baryon source, which mimics the "nuclear matter," we estimate the chiral
symmetry restoration in the presence of finite baryon number density.
