In the lush, animated world of Princess Waltz, our heroine, a sheltered princess, discovers a hidden erotic game, an eroge, in her father's study. As she tentatively explores the explicit content, her innocent mind is awakened to new sensations. She watches, wide-eyed, as the cartoon characters engage in taboo acts, their bodies entwined in intricate, sensual positions. The princess's own body responds, her heart racing, as she witnesses the vivid, detailed animations. Her fingers trace the outline of her own budding curves, mimicking the motions she sees on the screen.