  We aim at finding the reversal of radial SLE and proving the reversibility of
whole-plane SLE. For this purpose, we define annulus SLE$(\kappa,\Lambda)$
processes in doubly connected domains with one marked boundary point. We derive
some partial differential equation for $\Lambda$, which is sufficient for the
annulus SLE$(\kappa,\Lambda)$ process to satisfy commutation relation. If
$\Lambda$ satisfies this PDE, then using a coupling technique, we are able to
construct a global commutation coupling of two annulus SLE$(\kappa,\Lambda)$
processes. If more conditions are satisfied, the coupling exists in the
degenerate case, which becomes a coupling of two whole-plane SLE$_\kappa$
processes. The reversibility of whole-plane SLE$_\kappa$ follows from this
coupling together with the assumption that such annulus SLE$(\kappa,\Lambda)$
trace ends at the marked point. We then conclude that the limit of such annulus
SLE$(\kappa,\Lambda)$ trace is the reversal of radial SLE$_\kappa$ trace. In
the end, we derive some particular solutions to the PDE for $\Lambda$.
