Note: Due to DRM, I had to manually capture each frame in this so its resampled to 906x1280 instead of its native 1062x1500
Link:
https://www.dlsite.com/maniax/work/=/product_id/RJ412979.html
Description:
Caught by a succubus who loves experiments...
For the sake of her experiments, she captures men in the human world every day and conducts experiments until she runs out of energy.
And he is also a man involved in such an experiment.
Even though he tries to resist the succubus' charm, he tries to resist... in vain...
However, during the experiment, the man unexpectedly realizes that he's a girl...
with that body. The succubus experiment continues, but...