Hiding My Mastermind Core in a Yandere Academy

Chapter 38: Vault Was Empty



By the time Neil reached the edge of the southeastern administrative quarter, three separate rumors were already circulating through the outer court, and all three were wrong.

The first said Kaede had personally executed the Vane guards stationed at the vault. The second said the Vespera clan had used the chaos of the breach alarm to launch a second strike, unrelated to Lilith’s confinement. The third — the one Neil paid closest attention to, because rumors that specific usually started from someone who had actually seen something — said the Research Division hadn’t broken in at all.

They’d walked through the front gate with a signed warrant, and the Vane guards had let them.

Neil crouched behind a stack of storage crates two streets back from the cordon, close enough to watch, far enough to vanish into the crowd of curious disciples if a patrol swept the alley. His broom leaned against the crates beside him, an alibi he hadn’t needed yet.

A warrant means paperwork. Paperwork means someone signed off on this days ago, not hours ago. His mind was already running the calculation cold and fast, grief from the letter shoved down into the same locked drawer where he kept everything that couldn’t help him survive the next ten minutes. Kaede didn’t move because of what happened in Lilith’s cell. She moved on a timeline that already existed. The old man’s visit was a coincidence stacked on top of a plan already in motion — or it wasn’t a coincidence at all.

Either answer was dangerous. Neither one told him what was actually inside that vault.

He needed eyes closer than his own.

Shen found him twenty minutes later, sliding into the alley with soot still on his forearms from the furnace shift he’d abandoned halfway through.

"You said if anything moved near the southeastern quarter, I come straight to you," Shen said, breathing hard. "It moved."

"What did you see?"

"Not much. They’ve got a full perimeter, nobody outer-court gets within thirty paces." Shen wiped his mouth, still catching his breath. "But I know the boy who runs solvent requisitions for that sector. He was pulled out of bed an hour before the alarm even sounded. Cleaning crew, not combat. They needed him inside before anyone official showed up."

Neil’s eyes narrowed. "Before the alarm."

"That’s what he told his sister. She works the same shift as Yuen." Shen shrugged, the particular shrug of someone passing along information he didn’t fully understand the weight of. "Vane’s own people cleared that vault out before the Research Division ever walked through the gate. Whatever Kaede’s people are searching right now — it’s already empty."

The pieces clicked into place with a speed that left no room for the ache still sitting behind Neil’s ribs.

Celine knew Kaede was coming. She emptied the vault first, then let the Research Division search it, knowing they’d find nothing. She’s not defending the vault.

She’s making Kaede look like she overstepped her authority on a false lead.

It was clean. It was exactly the kind of move Celine would make — turn her rival’s aggression into her rival’s humiliation, using nothing but timing.

But it didn’t explain the alarm. It didn’t explain why the entire outer court had scattered like startled birds an hour before a routine inspection should have drawn no attention at all.

"Shen. The alarm — was it the Vane clan’s, or the Research Division’s?"

"Neither." Shen’s voice dropped. "That’s the part nobody can explain. The bell that rang wasn’t tuned to any clan’s frequency. The old groundskeepers are saying it’s the academy’s alarm. The one that hasn’t rung since before any of us were born."

Cold settled into Neil’s stomach, familiar now in a way he didn’t like.

Not Celine’s move. Not Kaede’s. Something inside the vault itself triggered a response neither faction controls.

"Get back to the furnace before they notice you’re gone," he told Shen. "If anyone asks where you were, you got sick and went to lie down. Don’t repeat any of this to anyone but me."

Shen nodded once and disappeared back into the crowd, and Neil allowed himself exactly three seconds of stillness before he stood, adjusted his glasses, and began working his way toward the cordon’s edge — not to get inside. To get close enough to hear.

He found the gap he needed near the old delivery ramp, a service alley the Vane guards had bothered to rope off but not bother to actually watch, too busy fanning out toward the vault’s main entrance where the real confrontation was unfolding.

Celine’s voice carried first, sharp with practiced fury, pitched exactly loud enough to be overheard by every disciple pretending not to listen from the surrounding rooftops.

"You breached a sovereign clan vault on a warrant signed by whom, Investigator?

Because it certainly wasn’t the Senate."

"The warrant is legitimate." Kaede’s voice, flat as ever, carried none of the heat Celine was performing with. "Emergency clinical authority, invoked the moment academy-wide alarm protocols activated. I don’t need your permission, Vice-President. I need to know what triggered a Third Cleansing-era ward inside a modern military storage vault."

Neil went very still.

Third Cleansing-era ward. Pre-imperial. The same category the old man’s letter had implied about the Token itself.

"There is no ancient ward in that vault," Celine snapped. "There’s nothing in that vault at all, as your own people have no doubt already confirmed. It’s empty. You’ve dragged the Vane clan’s name through another public humiliation chasing a rumor."

"It’s empty of talismans," Kaede said. "It’s not empty."

A pause. Even Celine, from the tone of her silence, hadn’t expected that answer.

"Explain."

"Whoever cleared the military stock left something behind that they either didn’t know was there, or couldn’t move." Kaede’s voice had gone quieter, more careful, the tone of someone choosing exactly how much truth to release into a hostile audience. "A structural inscription, carved directly into the vault’s foundation stone, beneath forty years of renovation work. My preliminary reading matches a script pattern that predates the current Senate calendar by at least three centuries."

Neil’s pulse spiked.

Third sublevel. Behind a maintenance corridor that hasn’t appeared on any official blueprint since the building was renovated forty years ago. Pak’s words, from weeks ago, about the very same vault. Someone had tried to burn the original construction records. They hadn’t tried hard enough.

Whatever Celine had built her military vault on top of, she’d never known it was already there first.

"You’re telling me a myth is carved into my family’s storage vault," Celine said, her voice flattening into something colder, more careful. "And that’s your justification for a full clinical seizure of Vane property."

"I’m telling you," Kaede said, "that whatever triggered the academy-wide alarm bell that hasn’t sounded in living memory was not a person walking through a doorway. It responded to something already present in that stone. Something old enough that neither of our clans built it, control it, or — I suspect — fully understand what it does."

Silence stretched long enough that Neil risked leaning fractionally closer to the gap in the crates.

"There’s a second detail," Kaede added, quieter now, almost reluctant. "The inscription isn’t static. It’s been active — faintly, continuously — for as long as your family’s records exist. Drawing minute amounts of ambient Qi from every cultivation session performed anywhere in this administrative quarter, for decades, without triggering a single sensory ward built to detect exactly that kind of drain."

It’s been feeding, Neil thought, and the cold in his stomach turned to something closer to dread. Slowly. Patiently. For decades.

Exactly the way my own core has been healing.

The pattern wasn’t a coincidence. It was a signature.

"Tonight," Kaede continued, "it stopped feeding, and started transmitting instead.

That is what triggered the alarm. Something inside your vault sent a message, Vice-President. I would very much like to know who was meant to receive it."

Neil didn’t wait to hear Celine’s answer. He already knew, with a certainty that settled into his chest like a stone dropped into still water, precisely who had been meant to receive it.

He pulled back from the gap, moving fast and low along the service alley, putting distance between himself and the cordon before his own name could become part of whatever conversation happened next. His mind was already three steps ahead, assembling a picture out of fragments that had been scattered across thirty-eight Chapters of his life without ever once looking connected until this exact moment.

The Akuto Token, buried in a wheat field, waiting for my family’s bloodline.

Nina’s ward-collapse, triggered by an old man who knew my father’s private words.

A pre-imperial inscription, buried under a modern vault, silently feeding on residual Qi for decades — and tonight, without warning, choosing to speak.

Three separate locations. Three separate decades, maybe more. All of it converging tonight, within hours of each other, the same night Neil finally opened a letter he’d been too afraid to read.

It wasn’t the old man’s visit that triggered this, he realized, the thought landing with the particular clarity that always arrived a half-second before something became undeniable. It was me. Reading the letter.

Something about that moment was the signal, and every dormant piece Hollow Ledger has ever planted around me just woke up at once.

He didn’t have time to sit with the weight of that. Footsteps were already converging on the alley behind him — not Vane enforcers, not Research Division agents. Lighter.

Faster. Familiar in a way that made his stomach drop for an entirely different reason.

Yuen, sprinting, her usual careful calm completely abandoned, skidding to a stop in front of him with her chest heaving.

"Neil." She grabbed his sleeve, something raw and frightened in her voice that he’d never heard from her before, not even when the Discipline Committee had put her name on a questioning list. "Pak sent me. He said to find you before you heard it from anyone else."

"Heard what?"

"The delivery ledgers. The ones he’s been pulling for you, twenty years back, looking for anything tied to Greenfall." Yuen’s grip on his sleeve tightened. "He found an entry.

Dated three days before the Black Tide hit your village."

Neil’s whole body went cold, the vault, the inscription, Kaede’s warrant — all of it receding into background noise against the sudden roar in his own ears.

"What did it say?"

Yuen’s eyes were wide, apologetic, terrified in the way people got when they had to hand someone news they wished they’d never read themselves.

"It’s a requisition order," she said. "Signed by the Vane clan’s logistics office. For a shipment of restricted alchemical incendiary stock." She swallowed hard. "Delivered to a courier post three miles outside Greenfall Village. Two days before the fire that killed your parents."

The alley seemed to tilt beneath Neil’s feet.

Everything he had built his entire survival strategy on — the assumption that the Black Tide had been a natural disaster, a tragedy of geography and bad luck that had nothing to do with the war he’d stumbled into three months ago — collapsed in the space of a single sentence.

"Say that again," he said, very quietly, in a voice that didn’t sound entirely like his own.

Yuen didn’t get the chance.

Somewhere behind them, back near the vault’s cordon, Celine’s voice rose into a furious shout that cut across the entire administrative quarter, sharp enough to carry over every rooftop where curious disciples had gathered to watch — and this time, it wasn’t aimed at Kaede.

"Someone find that janitor. Now. Neil Harlan is not authorized within a hundred paces of this cordon, and I want to know exactly why my own guard logs show him crossing through the service alley eleven minutes ago."

Neil’s blood went to ice.

Someone had been watching the alley the entire time. Not Shen, not Yuen — someone with access to the guard logs, someone positioned to notice exactly when and where he’d moved.

Yuen’s face went white. "Neil, they know you were here—"

"I know." He was already moving, pulling her with him deeper into the maze of storage alleys, his mind splitting cleanly into two tracks at once — one calculating an escape route through blind spots his network had mapped weeks ago, the other still reeling from four words that had just rewritten everything he thought he understood about the night his family died.

Two days before the fire.

The vault could wait. Kaede’s mystery inscription could wait. Even Hollow Ledger, patient and ancient and finally speaking after decades of silence, would have to wait.

Because if the Vane clan had shipped incendiary stock to a courier post three miles outside Greenfall two days before the Black Tide burned his village to ash, then the disaster that had shaped every single choice of Neil’s life — every mask, every calculation, every night spent sweeping floors while nursing a broken core — had never been an accident at all.

It had a name.

And for the first time since he’d walked through Akuto Academy’s gates with a crumpled admission letter and a broken Dantian, Neil Harlan wasn’t thinking about how to survive.

He was thinking about who was going to answer for it.

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

HaesuNote :-

Drop a Power Stone or Golden Ticket if you want.

Thank you so much for reading ❤️

See you in the next Chapter.

If you find any errors ( Ads popup, ads redirect, broken links, non-standard content, etc.. ), Please let us know < report chapter > so we can fix it as soon as possible.

Tip: You can use left, right, A and D keyboard keys to browse between chapters.