The most arrogant, aggressive and most violent of all the Blade Children Kousuke is usually the implementor of assassinations. Kousuke is very strong-willed and stubborn, choosing to fight the Hunters head on rather than hide from them. He is impulsive, impatient, and tends to resort to physical violence over verbal negotiation. He is not afraid to kill and does not really trust Eyes, resulting in arguments between them. While Rio calls him stupid, in reality Kousuke is very intelligent; after skipping most of elementary school, he still manages to catch up to secondary school level from reading and learning from books. Kousuke also left middle school after a run in with a teacher. Kousuke may also have some romantic feelings for Ryoko.

Ayumu Narumi's older brother Kiyotaka, a renowned detective and piano player, disappears all of a sudden. The only clue Narumi has, are the Blade Children. Two years later a row of murders and incidents begin, relating to the Blade Children. Together with school journalist, Hiyono Yuizaki, Narumi tries to figure out their destiny.
 
(Source: Anime News Network)

"I'M GOING TO UNCOVER THE MYSTERY OF THE 'BLADE CHILDREN.'"
 
World-class detective Kiyotaka Narumi's last words prior to his sudden disappearance continue to haunt his younger brother, Ayumu. The cheeky 10th-grader becomes further embroiled in the mystery when he is mistaken for the prime suspect in a murder at his school. Led by Ayumu's sister-in-law, Kiyotaka's 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 answers about who and what they are. 
(Source: Yen Press)

This is a spin off story that occurs about 2-3 years before "Spiral - Suiri no Kizuna". One of the main characters is Imari, who is in love with the kid who wants to be a detective, and which also quit school running after Kiyotaka, and it seems he's dating a murderer without knowing it...? But how is it all connected to the blade children? Not long after, our favorite Blade Children from Spiral appear for the rescue, all manipulated by Kiyotaka.


Kousuke Asazuki