"Dawn... it's almost here."
A tremor of tears entered Shinobu Kocho's voice, though she did not notice it herself.
Some looked up at the sky. Others silently stared down at the Nichirin Blades in their hands. Still others quietly wiped away tears that had slipped from their eyes.
Had they won this battle... or lost it?
At the final meeting before the battle, Tetsu no Sosuke had made the plan clear.
If Kibutsuji Muzan brought a horde of demons, the battle would unfold in two stages.
Everyone else would kill the other demons outside, while he found a way to lure Kibutsuji Muzan into the underground trap chamber.
The traps inside could be triggered in two ways.
One relied on sound. The other... on light!
Of everything Heavenly Artisan had left behind, those two mechanisms had delighted Tetsu no Sosuke most.
A hidden door controlled by sound could catch anyone off guard.
But a hidden door controlled by light went beyond that. Even the wind that stole into the night and nourished all things without a sound was still wind. Light left nothing to sense at all.
That would be their true trump card.
While sound held Kibutsuji Muzan's attention, light would spring the trap without warning, injecting the antidote Lady Tamayo had made—the one hidden deepest of all—directly into his body.
Kibutsuji Muzan's body would inevitably enter a faulty cycle of collapse and reconstruction.
And that would be Tetsu no Sosuke's only chance.
Humanity's only chance!
If everything went smoothly, everyone else would spend the night waiting in vain.
If it did not, then the moment Kibutsuji Muzan came out, everyone would have to run for their lives.
The one uncertainty in this plan was when Kibutsuji Muzan would fall into Tetsu no Sosuke's trap.
When would the antidote