★ Winner of the 24th “Kono Mystery ga Sugoi!” Awards! Urban legends meet multiple twists!
★ Highly recommended by renowned Japanese translators, writers, and mystery critics—who praise it as a “peculiar masterpiece” destined to be passed down through the ages.
★ Behind the urban legend of “Mr. Hole,” a monster with a hole in its face that devours women, lies the chilling truth about a serial killer.
★ The female protagonist, detective Honoka Takanashi, boasts a distinctive and unrestrained personality, adding a unique charm to this tense, suspenseful tale.
★ Author Yuusuke Shijima has an unusual background: trained as a voice actor before becoming an IT engineer. This cross-disciplinary experience brings an unexpected perspective to the story.

On the run from a serial killer harboring a bizarre secret, they find themselves pursued by a monstrous creature with a gaping hole in its face—one that snatches people and swallows them whole. The beast is known as “Lord Hole.” In a provincial city, women have been disappearing one after another, and strange rumors about this creature have begun to circulate quietly. Detective Homika Takanashi, hired to locate the missing, suspects that a serial killer lies behind the urban legend and launches an investigation. Meanwhile, the real perpetrator of the “Lord Hole” killings finds himself caught in an unforeseen predicament.