  We analyse the quantum behaviour of the "Little Sibling" of the Big Rip
singularity (LSBR) [1]. The quantisation is carried within the
geometrodynamical approach given by the Wheeler--DeWitt (WDW) equation. The
classical model is based on a Friedmann--Lema\^{i}tre--Robertson--Walker
Universe filled by a perfect fluid that can be mapped to a scalar field with
phantom character. We analyse the WDW equation in two setups. In the first
step, we consider the scale factor as the single degree of freedom, which from
a classical perspective parametrises both the geometry and the matter content
given by the perfect fluid. We then solve the WDW equation within a WKB
approximation, for two factor ordering choices. On the second approach, we
consider the WDW equation with two degrees of freedom: the scale factor and a
scalar field. We solve the WDW equation, with the Laplace--Beltrami
factor-ordering, using a Born--Oppenheimer approximation. In both approaches,
we impose the DeWitt (DW) condition as a potential criterion for singularity
avoidance. We conclude that in all the cases analysed the DW condition can be
verified, which might be an indication that the LSBR can be avoided or smoothed
in the quantum approach.
