Adult PC Game: Landcut – Sarah and the Magic Circle of Purification Version 3.0.0.1 (Eng) Archive

The protagonist Sarah has to bring her friend, Carl, to the magic circle of purification
in order to disenchant his curse. With the help of a villager, Valery, they head to
the magic circle of purification. However, the activation of the magic circle requires her
to use her skill of converting men's sexual desire into magic.

Upon arriving, Valery asks her what she can hardly accept.
But to save Carl, she has no option but to obey Valery...