Watch Spiral: The Bonds of Reasoning Dubbed full episodes online English dubbed kissanime.
Other name: 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.