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.
Synonyms: Spiral: Bond of Reasoning, スパイラル -推理の絆-
Status: Finished Airing
Country: Japanese
Released: 2002
Season: TV Series