192 страниц. 2008 год. Yen Press World-class detective Kiyotaka Narumis last words prior to his sudden disappearance continue to haunt his younger brother, Ayumu. The cheeky tenth-grader becomes further embroiled in the mystery when he is mistaken for the prime suspect in a murder at hisschool. Led by Ayumus sister-in-law, Kiyotakas wife and fellow detective, Madoka, the investigation into the murder gives Ayumu a chance to clear his name. But in doing so, he not only uncovers ties to the Blade Children but also more questions than answes about who and what they are.