Chapter Text
Deep beneath the world—far below any map, any prayer, any decent goddamn memory—there existed a place no one admitted was real. Buried under layers of stone and secrecy, carefully organized and deliberately forgotten, it housed the kind of creatures society preferred to pretend never fucking existed.
In one of its lightless chambers, nearly forty bodies lay scattered across the floor and slumped against the sweating walls. They breathed in a broken rhythm, air passing from one set of lungs to another like something already used up. Their moans were raw and ragged, mourning the days when sunlight touched their skin and night still meant rest instead of dread. Their names were gone—scrubbed clean the moment they were thrown down here. Identity erased. History buried.
Living dead. That was the polite term.
Slaves. Scum. Monsters. All dumped together like refuse.
Call it destiny if one wanted to sound poetic about something this fucked.
No one knew what this place was called. Next to hell would’ve been generous.
And this was where they kept the shinigami.
A young man. Male. Crimson hair spilled over his broad shoulders in tangled waves. His face sat frozen between shock and emptiness. Tanned skin split with cuts and bruises, every inch of him aching like he’d been used as a goddamn training dummy. Torture marks. No doubt about it. He was the newest resident, and that alone made no sense. He was a well-known officer of the Gotei. Famous enough that ending up here should’ve been impossible.
He wasn’t supposed to be here.
He was supposed to be the hero.
Instead, he was a slave.
And he didn’t even know it yet.
A sound dragged him awake, a warped mix of roar and moan. It took him a few sluggish seconds to realize it was a cry. Someone else’s… or maybe his own. Hell if he knew. What a pathetic fucking sound either way.
He shifted—and pain ripped up his back like a blade.
“Fuck—”
He forced his eyes open, expecting sunlight to stab through his skull. Instead, there was nothing. No glow. No shadow. Just thick, endless dark.
Was he awake?
Or dead?
He rolled slightly. Bad idea. Fire shot through his spine. Fucking hell that hurt. How long had he been out? His head felt nailed down, neck stiff as rusted iron. Whoever did this made damn sure he stayed put.
Yumi. Ikaku. You bastards.
He raised a hand to his face, testing sensation. Still there. Still breathing.
Shit. What time is it?
Dead men didn’t feel pain. And he felt plenty. So not dead. Yet. Though if his captain got to him first, that might change. Late again. Always fucking late.
The Great Renji Abarai, screwup extraordinaire.
You never learn, do you?
Things with Byakuya had changed—hatred burned down into something quieter, sharper, more dangerous. Training turned personal. Personal turned intimate. Captain by day, lover by night. And Renji still managed to fuck things up. Late, late, late. That stupid Abarai grin wouldn’t save his ass this time.
His skull throbbed like it was being split with a tire iron.
Then a crushing pressure crawled from shoulder to spine and he cried out raw. Muscles spasmed. Vision, still black. Cold soaked through him.
Why the fuck is it so cold?
Another cry echoed, closer this time.
Okay. Not alone.
Not his apartment. Not the manor. Not division quarters. Not the infirmary. Not Hueco Mundo. Not the Living World either. He would’ve sensed that carrot-top idiot by now.
Last mission was with the Sixth Division at—
…at…
He couldn’t remember. Shit.
He forced himself upright and immediately slammed back down.
“Ah shit! That fucking hurts!”
Worse than any hangover. Worse than any bar fight. His breath hitched. “I need a pill—”
No. No pill would fix this shit.
“Can someone turn on the damn lights or open a fucking window?”
Nothing.
No laughter. No teasing voices. No Rangiku being obnoxious. No idiots tying him up for a prank.
Silence.
“Guys?” His voice cracked. “Untie me. Now.”
Nothing.
“Untie me or I swear I’ll knock that fucking smile off your faces!”
Still nothing.
“Ran, this isn’t funny!”
“Hush your voice, child.”
The voice was a dry croak. Unfamiliar.
“Who’s there?” Renji snapped.
“Silence is valued here.”
Renji grimaced, palms pressing into wet stone. Wet. Fucking gross. “What the fuck does that mean?”
“The name is Bok,” the voice said. “And you should be quiet.”
Oh great. Kidnapped and dumped with a creepy old geezer. Perfect. Byakuya’s really going to kill me now.
“Where the hell am I?”
“Look again.”
“If I could see, I wouldn’t be asking, would I?”
A pause. Then footsteps. “Torch above you, boy.”
He tilted his head up, and sensed a faint flicker somewhere, but his sight stayed black.
Ice slid into his gut.
“I can’t see,” he whispered. “What the hell did you do to me?”
“I said be quiet,” the voice hissed.
“Fuck you!”
“Last warning.”
He rubbed his eyes hard. Nothing. Again. Nothing. Scooped filthy water from the floor and splashed it over his face. Panic rose fast and ugly. Air felt thin.
“You’re in bad shape,” Bok murmured. “Let me help—”
“Get the fuck off me—ah!” His back exploded in pain again.
Another voice spoke from the dark. “Chain on him. Must’ve pissed off someone important.”
Chain?
Renji froze.
Weight on his ankles. Metal drag. Cold links.
Oh, shit.
Hands shaking, he traced his body. Bruises. Lesions. Swollen gums. Fingers bent wrong. Ribs, definitely cracked. Whoever did this didn’t just want him captured. They wanted him broken.
Questions hammered his skull. Who did this? Why? When? For what? Which treacherous bastard thought this was a good fucking idea?
Anger flared hot and violent. If his hands were free, someone would be dead already.
“Name?” the second voice asked.
“Who the fuck wants it?” Renji muttered.
“If you prefer dickhead, I’ll use that.”
A presence sat beside him.
“Karo,” the man said. “You?”
“Renji Aba—”
“Enough. Names don’t matter here. They’re already dead.”
“What is this place?”
“The ruins,” Bok said.
“Penitentiary,” Karo added. “Dungeon for breathing sinners waiting to die.”
“I’m not a criminal,” Renji snapped.
“Everyone says that shit.”
Renji swallowed. “I’m blind?”
“For now. You’re the only one like that. You and your chains.”
“I don’t deserve this.”
“There’s always a reason,” Karo said. “You’ll find out soon enough.”
Renji grabbed him by the torn collar. “Who brought me here? Answer me. Answer me, goddammit!”
“Easy!” Karo hissed.
“Quiet,” Bok warned toward the door.
“How the fuck am I supposed to be calm?!”
Metal thundered. The steel door slammed open.
Karo cursed. “Nice going, redhead.”
Boots. Hands. Impact. Renji was dragged, thrown, smashed into stone again and again until the world rang and dissolved. The last thing he heard was the door crashing shut behind him.
Bok stared after. “You provoked him.”
Karo shrugged. “He wanted answers.”
“They’ll kill him.”
“Nah,” Karo said coldly. “But they’ll fuck him up enough that he’ll wish they had.”
—
The night did not grow quieter after that, it only grew heavier.
Byakuya did not turn around right away. He knew that laugh too well, loose, warm, infuriatingly sure of itself. Only one person in all of Seireitei could stand in his private garden unannounced and mock him like that without getting cut to ribbons.
Yoruichi Shihōin folded her arms and watched him with narrowed golden eyes. The humor was still there, but something sharper sat behind it now.
“You’re wound so tight you’re about to fucking snap,” she said. “And don’t bother denying it. I can feel your reiatsu chewing holes in the air.”
Byakuya exhaled slowly through his nose. “If you came here to comment on my condition,” said Byakuya Kuchiki, voice clipped and cold, “congratulations. You’ve done it. Now leave.”
“No,” she said simply. “Not happening.”
His jaw tightened. “You never did learn manners.”
“And you never learned how to lie worth a damn.” She stepped closer. “You’re terrified.”
That word hit like a slap.
His spiritual pressure spiked. Not enough to attack, but enough to make the pond ripple and the stones tremble.
“Choose your next words carefully,” he said quietly. “I’m in no mood for games.”
“Good,” she shot back. “Because this isn’t a game. Your vice-captain is missing, the old man tied your hands with orders, the council’s breathing down your neck, and you just told your sister to get the hell out. You’re not fine, you’re a fucking mess.”
Silence stretched.
Crickets stopped.
Wind held its breath.
“Six days,” Byakuya said at last. “No signal. No body. No trace. And I’m ordered to sit still like a decorative statue while others move.” His fingers curled into his sleeve. “Do you have any idea how insulting that is?”
“I do,” Yoruichi said softly. “Which is why I’m here.”
He turned then, eyes sharp as blades. “Speak plainly.”
“We found something.”
“Who is we?” he asked.
“Don’t play dumb. You know exactly who I work with when things smell like shit.”
His gaze hardened further. “Say it.”
“Underground holding routes. Black transport channels. Old punishment corridors that were supposed to be dismantled centuries ago.” She watched his face carefully. “Somebody’s using them again.”
A pause.
Then — “No,” Byakuya said. Flat. Certain. “Those systems were sealed.”
“They were supposed to be,” she replied. “So was a lot of other bullshit.”
His pulse kicked once, hard.
“…Evidence,” he demanded.
“Witness chatter. Disappearance patterns. Spiritual residue that doesn’t belong anywhere official.” She leaned closer. “And one red-hot trail that smells a hell of a lot like your loud, foul-mouthed lieutenant.”
The world seemed to tilt.
Renji Abarai.
He did not say the name out loud, but it burned behind his eyes.
“Where,” Byakuya asked.
“Below old jurisdiction layers. Pre-reform detention sectors. The kind nobody admits still exists.” She clicked her tongue. “Real ugly shit.”
His voice dropped. “Why was I not informed?”
“Because whoever is running it doesn’t want captains sniffing around, especially not you.” She smirked faintly. “You’re scary when you’re pissed. And right now you’re nuclear.”
He took one step toward her. “Why tell me?”
“Because you’re going to disobey orders anyway,” she said. “And I’d rather you not charge in blind and get yourself killed like a dramatic idiot.”
“That would not happen.”
“You say that now.”
He stared at her, long, measuring, furious, and she let him.
“Who else knows?” he asked.
“A short list. Quiet list. No council. No commander.” She tilted her head. “And before you ask, yes, one of your least favorite battle-addicted lunatics is already moving.”
A muscle twitched in his cheek. “Of course he is.”
Kenpachi Zaraki needed no further explanation.
“Relax,” she added. “He’s useful when the job is ugly.”
“He’s useful when something needs the shit beaten out of it,” Byakuya said dryly.
“Exactly.”
Another silence, but this one was focused, coiled, alive.
Yoruichi watched the shift happen, grief folding into purpose, fear compressing into steel.
“There he is,” she murmured. “That’s the bastard I expected.”
Byakuya turned toward the manor doors.
“You’re going,” she said.
“Yes.”
“That’s a direct violation.”
“Yes.”
“That could cost you your title.”
“I don’t give a fuck.”
She grinned. “Good answer.”
He stopped once more, without looking back. “If this is false—”
“It’s not.”
“If this is a trap—”
“Then we spring it first.”
A beat.
“Tell me where,” he said.
Yoruichi’s smile faded into something predatory.
“Now you’re talking.”
And somewhere far below stone and steel and forgotten law, in a cell that stank of rust and misery, a chained redhead screamed again, and this time, someone important finally heard the echo.