Two years ago, Ayumu Narumi's older brother Kiyotaka, a famous detective and pianist, disappears without a trace. Ayumu's only clue as to his brother's whereabouts is the phrase "Blade Children," the only words Ayumu could make out in Kiyotaka's final phone call. Now in high school, Ayumu becomes involved in solving in a series of murders and other incidents, all related to the Blade Children. Together with his school's journalist, Hiyono Yuizaki, and the unwilling assistance of his sister-in-law, Madoka, Ayumu tries to figure out who the Blade Children are and what are their goals.
The Blade Children are the central mystery of the series, known only as cursed children that few know about and are being pursued by so-called Hunters. They are distinguished by their cat-like eyes and by missing the seventh right rib bone. As Ayumu investigates them, he meets Blade Children Kousuke Asazuki, Rio Takeuchi, Eyes Rutherford, Ryoko Takamachi, and Kanone Hilbert, and is tested in various ways by them. Those who meet him eventually conclude, some more reluctantly than others, that Ayumu does have what it takes to "save" the Blade Children, as they say Kiyotaka claims.
Plot Summary: Ayumu Narumi fratele lui mai vechi Kiyotaka, un renumit detectiv şi pianist, dispare tot de brusc. The only clue Narumi has, are the Blade Children. Singurul indiciu a Narumi, sunt Blade copii. Two years later a row of murders and incidents begin, relating to the Blade Children. Doi ani mai târziu, un sir de crime şi incidentelor începe, cu privire la Blade copii. Together with school journalist, Hiyono Yuizaki, Narumi tries to figure out their destiny. Împreună cu jurnalistul şcolii, Hiyono Yuizaki, Narumi încearcă să dau seama lor destin.
