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Spiral: Lines of Reasoning Info:

Plot Summary: Ayumu Narumi's older brother Kiyotaka, a renowned detective and piano player, disappears all of 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.

Spiral: Lines of Reasoning Episodes: