Demacian guards have step-soned step-Sona, they plan to expel the magic within her by making her cum multiple times! Bound to a chair and unable to move she has no choice but to let the high sensations of the vibration fill her, the thrill and tense atmosphere of being watched and not seeing by who all the while she's unable to harness mana to help her escape, but why would she? No, she can't possibly enjoy having unknown people keep her captive and tease her. The feeling become too overwhelming for her and she starts to loose her mind, her strength wavers and one guard manages to convince her to take his dick in her mouth! She becomes a drooling mess by the end, wanting more and more.