Spiral, Vol. 6: The Bonds of Reasoning by Kyo Shirodaira
With Kanon ready to start hunting down the Blade Children one by one, Ayumu finds himself in the thick of things as the hunter vies for his allegiance... at gunpoint! But even when both Eyes and Rio are in his deadly sights, Kanon's plans are thwarted by his own promise to not harm any non-Blade Children when everyone's favorite school newspaper reporter, Hiyono, stops him in his tracks! Why is she fighting alongside the Blade Children? And which side will Ayumu choose?