In this anime, two siblings, bound by family ties and supernatural forces, find themselves drawn to each other in ways they can't resist. The brother, a spectral presence, watches his sister as she sleeps, his ghostly form stirring with lust. She awakes, feeling his gaze, and their eyes meet, a silent understanding passing between them. Despite the taboo, they can't deny their attraction, and soon, they're entwined in a passionate, otherworldly embrace, their bodies melding and merging as they give in to their forbidden desires.