  We present our result of binding energy of light nuclei with the nuclear mass
number less than or equal to four at the pion mass $m_\pi = 0.3$ GeV. The
simulations are performed in $N_f=2+1$ QCD with Iwasaki gauge and a
non-perturbative improved Wilson quark actions at the lattice spacing of $a =
0.09$ fm. We discuss the $m_\pi$ dependence of the binding energies by
comparing with previous results. Furthermore, we show preliminary results for
the axial charge and the Dirac radius obtained from the nucleon form factors at
almost physical $m_\pi$.
