Bibliomania is a haunting psychological horror manga that follows a young girl who becomes obsessed with books and the mysterious library that appears to her, as she discovers that the books contain more than just stories and the library holds dark secrets about knowledge, obsession, and the price of curiosity. As the protagonist descends deeper into her obsession with books while encountering other bibliophiles and the mysterious librarian, the narrative explores themes of obsession, the power of stories, escapism, and the blurred lines between reality and fiction with atmospheric dread and psychological tension. Blending horror, psychological thriller, mystery, and gothic elements with literary themes, the series delivers a chilling meditation on the dangers of obsession that appeals to fans of psychological horror and dark fairy tales. Also known as Bibliomania manga, ビブリオマニア, library horror, book obsession, and psychological gothic.