Cumsucking Witch, My Girlfriend and I [Voiced Video + Fully Spherical 360 degree VR Bonus]

The story is set in the alternate world around the Medieval Period.
In a small town in a certain country, a strange disease that degrades
both sexes' reproductive functions is spreading over.
While people live in anxiety, the causal agent expands its range of influence.

There is an ancient legend in the town that has been passed through generations:
to get rid of the 'curse', it is required to hand over a young man in the bloodline of
the leader of given place to the Witch of the West...
As a son in the mayor's family, Adam solely heads to the witch's mansion
for the sake of saving people from the threat of the rare disease,
without knowing that the legend was forged by the witch
who is a descendant of a horrible strain of succubus...