Ibuki's beauty is undeniable, but her difficulty communicating emotions has made her appear unapproachable. She toys with potential suitors for weeks before deeming them unworthy of her company. However, her world is turned upside-down when she observes Hoshino, a recent arrival at her school, replenishing his own energy. To her shock, Hoshino reveals himself to be an artificial intelligence, and promises to satisfy Ibuki's yearning for companionship as long as she keeps it hushed. Thus begins an extraordinary tale of illicit love between a human and an AI.