In a world where the existence of Apparitions is publicly recognized, no one doubts their reality anymore. As a result of diversification and policies to address the aging population, marriage between humans and Apparitions has been legalized, and the fear people once felt toward them is fading. Through a strange twist of fate, Guest has come to live in an old Western-style manor rumored to be haunted. The house features six bedrooms and a basement. Ivy crawls symmetrically across the brick walls flanking the entrance, and the garden is lush with seasonal blooms. In the basement study, the bookshelves are packed with a diverse collection of literature from both the East and the West.