  We present the latest Hyper-Kamiokande sensitivity study showing that, with a
total exposure of 13 MW $\times 10^{7}$ seconds integrated beam power, the CP
phase - $\delta_{CP}$ - can be determined better than 21 degrees for all
possible values of $\delta_{CP}$ and CP violation can be established with a
significance of more than 3$\sigma$ (5$\sigma$) for 78% (62%) of the
$\delta_{CP}$ parameter space.
