  We clarified that the fusion hindrance in heavy ion collisions is caused by
the expansion of the neck bridge at the early stage of collision [Phys. Rev. C
108, 014612 (2023)]; however, our discussion was limited to the trajectory
analysis. To get a reliable fusion cross section, it is important to understand
the fusion process connecting with multinucleon transfer and also the process
depending on the target orientation in detail. Especially, the effects of
target orientation on the multinucleon transfer process have not been discussed
so far in our model. First, we investigate precisely the start time of the neck
expansion relevant to the mass transfer. The main aims of this paper are to
discuss the mass drift in the collision with the different target orientations
within the dynamical approach in the reaction 32S + 232Th. The orientation
effects are incorporated within the framework of the Langevin equation. The
start time of the neck expansion was presumed to be 10 zs by analysis in
several entrance channels. By taking account of the target nuclear orientation,
a strong mass-angle correlation was obtained which is compatible with the
experimental data. Not only ``delayed relaxation'' of the neck but also the
nuclear orientation effects have an important role in the strong correlation
between fragment mass and its emitting angle. The mass evolution toward mass
symmetry is slower than the standard mass drift mode assuming an
exponential-type function. Particularly, the mass drift of the tip collision
follows the slow mass drift mode assuming a Fermi-type function rather than an
exponential-type function, which is related to the different features of the
maximum neck cross-sectional area in the sticking process.
