Spiral, Vol. 9

Kanon is startled by the sudden arrival of Madoka Narumi, but not so
much as to shake his aggressive offense. Still, it's enough to give Rio
the chance to rescue the captive Ayumu. Free at last, Ayumu must face
the difficult decision that lies before him. Is his only option to kill
Kanon? As the Blade Children fall back and lick their wounds, Ayumu
must find a solution to end Kanon's reign of terror once and for all,
even if it means becoming a murderer himself.