Tatsuya tried the scalpel on a flanker coming over the wall. Unarmored, it worked, the wind opening his thigh to the femoral artery. The next one up was earth-coated, the scalpel ground through with resistance, wind finding purchase where the old chakra scalpel never could, and opened his side.
Two down, but Minato's kunai couldn't touch the earth skin. He was targeting joints, disrupting balance, buying time without killing. Tatsuya's scalpel was the only lethal edge against armor, and one blade against ten wasn't math that survived contact. Fire cracked earth under sustained heat, but Dragon Fire alone wouldn't break a formation this fast. The theory was there, had been since those sustained-output sessions. Wind feeds fire the way exhalation feeds a forge. Fire sustains itself through combustion, wind disperses naturally, but wind directed into active flame doesn't scatter it. It intensifies it. They'd never had the right conditions to try.
Eight-foot pass. Rock walls containing the airflow. Cracked earth armor with gaps the explosive tags had opened. Conditions didn't get more right than this.
Tatsuya caught Minato's eyes. "Wind into fire. Like the sessions."
Minato understood instantly. He'd been the one teaching sustained wind output in the first place. A sharp nod.
Hands through seals. Fire Release: Dragon Fire. The flame tracked along the ground, funneled by the narrow pass into a concentrated stream. Behind it, Minato's hands shifted, sustained wind output pouring into the fire's base —
Too early. The wind hit before the combustion was self-sustaining. The flame guttered sideways, licked the rock wall, and died.
Shit.
"Again," Minato said. Already resetting.
Hands through seals. Dragon Fire, second attempt. This time Tatsuya held the stream for a full second before Minato fed the wind in, letting the combustion settle before the air hit it. The same sustained wind he'd drilled into Tatsuya over months of training. He'd mastered it years before his student ever touched it, and his control showed.
The fire roared.
Dragon Fire was already vicious in a chokepoint. Wind-fed, it became something else. Flames that didn't just track along the ground but filled the confined space, superheated air rushing through every crack the explosive tags had opened in earth armor. The rock walls reflected the heat back inward. The armored vanguard that had shrugged off shrapnel staggered as thermal stress found the fractures in their stone skin, armor sloughing off in chunks where the heat penetrated. Unarmored fighters behind them couldn't even scream — the fire ate the air before sound could travel.
It lasted maybe four seconds. The wind guttered as Minato's sustained output hit its limit, already running at eighty percent on a damaged leg. The fire collapsed back to embers.
The pass was a furnace. Two of the armored vanguard were still standing, earth skin cracked and smoking but upright. The rest were down or retreating. The combination had been devastating in this terrain, but Tatsuya filed the limits alongside the result. Two people, coordinated. Terrain-dependent; open ground would scatter the wind, dissipate the heat. This worked because the pass was a chimney and because Minato's wind control was better than his own. They'd need proper practice before attempting it anywhere else.
Minato drove into the opening, kunai flashing, targeting the joints of the two staggering armored fighters. He took down two more—
Then the earth spike caught him.
It came from below. A jutsu from one of the specialists, the ground itself buckling upward in a jagged ridge that tore through the pass floor and caught Minato's left calf before he could clear it. The impact was ugly. Tatsuya heard it from fifteen feet away, saw Minato's stride buckle as the leg absorbed something it was never meant to take at that speed.
Minato went to one knee. In the same motion, he threw three kunai that dropped the nearest fighter and forced himself back up, but slower now. Favoring the left side. The impossible acceleration had a crack in it.
"Fall back to me!"
Minato disengaged, still fast enough to create distance, but the limp was real. He reached Tatsuya's position and Tatsuya's hands were on his calf before he stopped moving.
"Thirty seconds." Already channeling. Deep contusion, periosteal bruising, hairline fracture along the fibula. Damage that would cripple anyone who relied on speed. He pushed medical chakra into the tissue, stabilized the fracture, reduced the swelling. Didn't have time for more. But eighty percent was enough.
The remaining Iwa fighters were regrouping. Seven still standing.
His hands glowed green against Minato's leg. His eyes stayed on the pass. Internal circulation managed his own cracked ribs simultaneously. Three tasks, simultaneously. The concentration split that Tsunade had first noticed, that Duy had called his greatest strength and his deepest limitation.
Phoenix Sage Fire, one-handed, seals rough but functional. Six fireballs screamed into the pass, scattering the formation, buying the seconds he needed.
"Done. Don't push the acceleration past what the bone can handle. The fracture's stabilized, not healed."
Minato stood. Tested the leg. The limp was subtle now, visible only if you knew.
"Good enough." He met Tatsuya's eyes. No words needed. Gratitude, trust, and something heavier: knowing what it meant to have a friend's hands inside your injury while enemies charged.
They fought the remaining seven together. As a unit, the way teams worked when they'd bled enough to stop thinking about coordination. Minato's reduced speed was still faster than anyone in the formation. Tatsuya's fire and scalpel covered every angle his leg couldn't reach. Four down. Three broke and ran.
Tatsuya leaned against the rock wall. Shoulder bleeding where a kunai had caught him. Burns across his right side from an earth-fire combination. His own ribs aching from a hit he'd taken while healing Minato. Chakra reserves hollowing. Dragon Fire had torn through what the explosive tags and healing hadn't consumed. Techniques starting to require attention instead of flowing. Wire spent. Tags spent. The combination had been devastating but the cost was split between both of them, and neither had anything left in reserve but raw skill and whatever the soldier pills could give back.
Minato sat beside him, breathing harder than Tatsuya had ever seen. The leg was hurting, visible in the set of his jaw, the careful way he positioned it.
Tatsuya pulled the storage scroll. Field dressings for his shoulder. A soldier pill and canteen pressed into Minato's hands.
"Take it."
"I'm—"
"Take the pill, Minato."
He took it. They had maybe two minutes. Tatsuya spent ninety seconds with his hands on Minato's leg, pushing more healing into the fracture while internal circulation managed the worst of his own damage.
Then his sensing found the third group forming.
And one signature that dwarfed everything before it.
---
Ishigaki Ren came through first.
Tatsuya recognized her from the intelligence briefings Sakumo's operational parameters had included: northwestern border operations commander, known for methodical earth-and-formation tactics. She broke positions through patience and overwhelming terrain manipulation, never flashy jutsu. A professional.
She moved like the ground owed her something. Earth techniques so deeply integrated into her movement that the stone shifted with her footsteps, the pass floor rippling in micro-adjustments that spoke of years of elemental mastery. Behind her, eight chunin. The last of whatever hadn't been scattered or killed.
Ishigaki surveyed the pass. Spent wire on the ground. Blast marks on the rock walls where the tags had detonated. Two exhausted defenders: blood, bandages, damage from two engagements held on skill and preparation that had run out. Her assessment took two seconds.
"The medical combat specialist." Her eyes fixed on Tatsuya. Flat. Professional. "You've been keeping him functional." A glance at Minato, then back to the charred walls and cracked stone. "Traps and combinations. Smart." Her tone was clinical. "You've already used everything."
She knew. More than a battlefield read. She'd come in with his designation ready. Iwa had operational profiles on individual Konoha shinobi, detailed enough to identify a chunin medic by sight and prioritize him as the tactical threat. And her assessment of their state was accurate: wire spent, tags spent, reserves hollowed. Two fighters who'd done the smart thing and run out of tricks.
"So we address the healer first."
She came for Tatsuya.
Minato intercepted. Even at eighty percent, his reflexes put him between Ishigaki and Tatsuya before she'd finished her first step. Kunai met earth-encased forearm and the blade chipped. Her counter drove him back three steps, the damaged leg absorbing impact it couldn't afford.
The eight chunin swarmed the pass. Targeting Tatsuya, not Minato. Take out the healer. The intelligence thread, made tactical.
Tatsuya fought. Chokuto against the first: the blade caught the gap beneath the flak jacket and found the subclavian. Wind scalpel on the second, earth-armored, the wind ground through and opened his arm. Dragon Fire drove three back. Phoenix Sage Fire scattered two more. But there were too many, and they were fresh, and he was not.
An earth-reinforced fist caught his ribs. A rib cracked. He gave back a thrust through the armpit gap that dropped the man who'd hit him, but his reserves were failing. The scalpel flickering. The chokuto blade chipped and wrong.
Minato was fighting Ishigaki ten feet away. Really fighting, nothing like Lightning Country. Desperate and brilliant, speed against stone, precision against power. He was making it work. Barely. Each burst of speed cost more, the leg grinding against the hasty repair.
Then Ishigaki caught him.
An earth pillar erupted beneath Minato's feet. He dodged, but the damaged leg couldn't push off fast enough. The pillar clipped his hip, and the follow-up palm strike connected center mass. Earth-reinforced. Full-body weight behind it.
Minato hit the pass wall and went down.
Tatsuya dropped the last chunin with a scalpel across the throat and was beside Minato in two shunshin steps, knees hitting stone, hands glowing green. The damage was bad. Fractured sternum. Cardiac contusion, the impact rattling the heart inside its cage of bone. His breathing was wrong, his pulse stuttering, and without intervention the arrhythmia would destabilize and—
His hands worked. Medical chakra flooding the injury, coaxing the cardiac rhythm toward stability, reducing the swelling around the pericardium. His internal circulation managed his own cracked ribs simultaneously. Everything he had, split between keeping himself functional and keeping Minato alive.
Ishigaki's footsteps. Measured. Patient. She could see the medic kneeling, hands occupied, back exposed. An easy finish.
Tatsuya didn't look up. His hands stayed on Minato's chest because if he moved them — if he stopped for even five seconds — the cardiac rhythm would go wrong again, and field medics couldn't manage this, and—
If he kept healing, she'd kill them both. If he stopped healing to fight, Minato might die.
He couldn't do both.
He couldn't be enough.
Behind the chokepoint, he could still feel the caravan in his sensing range. Diffuse civilian signatures, not far enough yet. Takeshi's team with them, wounded and pushing. And under his palms, Minato's heartbeat, fighting to stay regular.
Ishigaki was five meters away. Earth armor intact. She could afford patience.