The room smelled of sulfur and saltpeter.
I'd found it in an unused storehouse—stone walls, dirt floor, far from anything flammable. Perfect for mixing things that shouldn't exist in this century.
My hands moved with certainty.
Not Hiroshi's hands. Not Kaito's hands.
Our hands.
The system had given me the formula: seventy-five parts saltpeter, fifteen charcoal, ten sulfur. Simple numbers. World-changing result.
I measured. Mixed. Packed the black powder into a bamboo tube.
This will work.
It has to.
[SYSTEM NOTE]
[GUNPOWDER FORMULA: ACTIVE]
[FIRST PROTOTYPE: 95% COMPLETE]
[WARNING: UNTESTED. HANDLE WITH EXTREME CAUTION.]
I ignored the warning.
I'd handled worse. Circuits that could kill if grounded wrong. Transformers that could arc across a room. This was just chemistry.
Dangerous chemistry.
But still chemistry.
The door creaked open.
Tanaka stepped in, stopped dead at the sight of me crouched over bamboo and powder.
"My Lady... what is that?"
"A weapon."
He eyed the black powder with the instinct of a soldier who'd learned to fear the unknown. "It looks like dirt."
"It thinks like thunder."
I stood, brushing off my robes. They were already stained. Kaito would have hated that. Hiroshi didn't care.
Neither did I.
"The enemy?" I asked.
"Three days out. Maybe four. They're moving faster than we expected." He handed me a scroll. "Scouts report at least two thousand men. Possibly more."
Two thousand.
Our standing army numbered eight hundred.
I should have felt fear. Instead, I felt something else—a cold, calculating focus that came from both of us. Hiroshi's problem-solving. Kaito's battlefield instinct.
"We're outnumbered."
"Yes."
"Good."
Tanaka blinked. "Good?"
"They won't expect an attack. They'll walk in confident, expecting a siege." I looked at the bamboo tube. "We're not going to give them a siege."
[SYSTEM ALERT]
[NEW QUEST: WIN THE BATTLE AGAINST OVERWHELMING FORCES]
[REWARD: ADVANCED TECHNOLOGY BLUEPRINT - MATCHLOCK MUSKETS]
[CURRENT INTEGRATION: 95%]
The council convened at dusk.
Same room. Same faces. Same tension.
But everything had changed.
Fujiwara's seat remained empty. Minister Abe twitched more than usual. Lord Sato watched me with new eyes—wary, calculating, interested.
General Tanaka stood at my right like a stone pillar.
Ren stood at my left.
A statement.
I unrolled a map across the table.
"The enemy will arrive in three days. They outnumber us more than two to one. They expect us to fortify the castle and wait."
General Tanaka nodded grimly. "Standard strategy. Let them siege, hope they run out of supplies before we do."
"We're not doing that."
Silence.
Lord Sato leaned forward. "What do you propose, My Lady?"
I tapped a point on the map. A narrow valley half a day's march from the domain. The only approach that could accommodate an army.
"Here. We meet them before they reach the walls."
"With eight hundred against two thousand?" Abe's voice cracked. "That's suicide."
"With eight hundred and this."
I set the bamboo tube on the table.
They stared.
"It's a weapon," I said. "One they've never seen. One they can't defend against."
Tanaka picked it up carefully. "This little thing?"
"It's not the thing. It's what's inside." I took it back. "Tomorrow, I'll show you."
That night, I couldn't sleep.
Not from fear. Not from anticipation.
From presence.
Kaito and I—we were so close now that I couldn't tell where one ended and the other began. Her memories surfaced unbidden: childhood games, first sword, the day her father died. My memories rose to meet them: circuit boards, loneliness, the taste of instant ramen at 2 AM.
We were becoming something new.
Something that could lead armies.
Something that could love a man like Ren.
Something that could change the world with thunder in a tube.
A knock at my door.
Ren.
He entered without waiting for permission—a privilege I'd given him without thinking. Or maybe she had. It didn't matter now.
"You're still awake."
"So are you."
He crossed the room. Sat beside me on the sleeping platform.
"Tanaka told me about the plan. Meeting them in the valley."
"Are you going to try to talk me out of it?"
"No." He looked at me—really looked. "I've seen you do impossible things. Escape death. Expose traitors. Return from a haunted shrine changed." A pause. "If you say this weapon works, I believe you."
Warmth spread through my chest.
Hers. Mine. Ours.
"Thank you."
He took my hand. Calloused fingers interlacing with slender ones.
"When this is over," he said quietly, "I want to talk about us."
"Us?"
"Whoever you are. Whoever we are. I want to figure it out together."
I couldn't speak.
So I leaned against him instead.
We sat like that for a long time, watching moonlight filter through the screens.
Tomorrow, I'd test a weapon that could change warfare.
Tonight, I'd let myself be held.