In this erotic anime, two sisters, bound by their shared secret and forbidden desires, find solace in each other's arms. Their father, a religious man, has long suspected their unnatural affections, but tonight, he catches them red-handed. As he watches, hidden in the shadows, his daughters pleasure each other, their bodies writhing in sync, he can't help but feel a mix of disgust and arousal. When they finally notice him, they don't stop, instead inviting him to join, their eyes filled with a hunger that's both terrifying and exhilarating.