At Kakyoku Academy, the Academy Detectives are selected from the best of the student discipline committee, and charged with keeping the school's order. Detective Sayama Tsubaki is paired with underclassman ...

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...

Original Manhua