Prequel to the first song in the Vocaloid series,
Murder Case at the Mansion of Antiquarian Books
, and follows the events between the schoolgirl detective who loves mystery novels, Hanamoto Hibari, and the extremely sadistic mystery novel writer, Kudou Renma.
As the high school is busy with preparations for the Culture Festival, a female student is found on the roof, collapsed and bleeding.
Written in blood is a single X. Is this an accident? Or a case? Hibari sets out to uncover the truth.



But whatever the reason, Webnovel just marked it as completed and never renewed, so you won't find any translations for this novel anywhere, except for the MTL sites.
Well unless maybe some other scanslation group translates it. But due to the fear of DMCA, i don't think any would.