Venefica is more so about being a pet to a strong, dominating woman than it is about being seduced. Her scenes only happen if the MC allows her to dom them.
Every girl you fight has loss scenes (often 2-3) with some only accessible if you lose in a specific stance. You can willingly chose to lose to trigger these scenes. So in a way this game's gameplay loop is about surrendering or allowing yourself to be taken advantage of.