Ayumu Narumi's older brother Kiyotaka, a famous detective and pianist, disappears without a trace. The only clue as to his
whereabouts is the "Blade Children", the only words Ayumu managed to catch in a final phone call from Kiyotaka.
Two years later, a row of murders and incidents begin, all related to the Blade Children. Together with the infamous (and
only) school journalist, Hiyono Yuizaki, Ayumu tries to figure out their destiny and the mystery shrouding their past.

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