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Watch Spiral: Bond of Reasoning full episodes online English dub,English Sub.
Other titles:Spiral: Suiri no Kizuna
Synopsis: 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.
Language: English dub,English Sub
Aired: Oct 1, 2002 to Mar 25, 2003
Genres: Drama, Mystery, Shounen
Sources: Myanimelist, Wikipedia