# Chapter 1 — A Sudden Beginning
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The summer sun blazed mercilessly over Tokyo.
Heat shimmered above the asphalt like invisible flames, warping the air in soft, wavy distortions that made the distant buildings ripple as though the city itself were melting. The cloudless sky stretched endlessly overhead—a brilliant, unbroken blue canvas that offered absolutely no mercy from the burning sunlight pouring down on the streets below.
Most pedestrians hurried along the sidewalk with sleeves rolled up and faces damp with sweat, ducking under awnings and fanning themselves with whatever they could find.
But one young man walked calmly through it all.
Hayato adjusted the strap of his bag over his shoulder as he made his way down the familiar street toward the university. His black hair swayed lightly in the warm breeze, falling just past his brows in slightly uneven strands that caught the light. Despite the oppressive heat pressing down on the city like a heavy hand, his expression remained cool and composed—dark eyes fixed ahead, jaw relaxed, pace unhurried.
Cars hummed along the road beside him.
Cicadas screamed from the rows of trees lining the sidewalk, their shrill, endless chorus drilling into the summer air like tiny sirens that never stopped.
Sweat rolled down the backs and temples of nearly every person who passed, but Hayato barely seemed affected. His navy polo clung slightly at the collar, and a thin sheen of moisture sat along his hairline—but that was all.
*Another normal day.*
The towering buildings of central Tokyo reflected the sunlight in blinding flashes, steel and glass turning the skyline into a wall of mirrors. Hayato squinted slightly as he approached the university gates, where students moved in clusters, chatting lazily, laughing about nothing in particular as they drifted toward their classes.
Hayato slipped quietly among them.
No one called out to him. No one waved.
Just another ordinary college student melting into the crowd.
Nothing—absolutely nothing—about this day suggested it would become the last normal day of his life.
---
Hours passed.
The sun drifted slowly toward the horizon, the bright white afternoon fading into the golden hues of early evening. Long shadows stretched across campus walkways. The heat had softened, but only slightly—the air still carried the weight of a day that had baked the concrete for hours.
Hayato stepped onto the nearly empty city bus, and the doors hissed shut behind him.
Inside, the air conditioning hummed softly overhead, pushing a steady stream of cool air down through the vents. The chill washed over his skin immediately—a welcome relief that made the hairs on his forearms rise.
He exhaled quietly through his nose.
There were only three passengers in total.
An elderly man sat near the front, both hands resting on the curved handle of a wooden cane. His head bobbed gently with the bus's rhythm, eyes half-closed.
A woman in her thirties sat a few rows back, thumb scrolling absentmindedly through her phone, the soft blue glow of the screen reflected in her glasses.
And Hayato, who took a seat near the window on the left side.
The bus rumbled forward with a low mechanical groan, tires rolling over warm asphalt.
Outside, the city flowed past like a moving painting—unhurried, familiar, predictable.
Rows of small shops with colorful awnings.
Traffic lights shifting from green to amber to red.
People crossing intersections in patient clusters, bags swinging at their sides.
Hayato leaned his head lightly against the cool glass window. The surface felt good against his temple—smooth and slightly chilled from the air conditioning inside the bus. The vibration of the engine created a faint, steady rhythm beneath him, a gentle hum that traveled up through the seat and into his bones.
*Another routine day.*
His eyelids grew heavy.
The sky outside had begun to turn orange, the sun bleeding its last warmth into the clouds gathering near the horizon. Shadows stretched longer across the streets, darkening the alleys between buildings.
Evening was settling in.
Quiet. Predictable. Safe.
Then—
The bus suddenly *shook*.
Violently.
The entire vehicle lurched sideways as if something enormous had struck it from beneath—a force so sudden and so powerful that Hayato's body was thrown against the window. His shoulder slammed into the glass. The elderly man at the front cried out, his cane clattering to the floor. The woman's phone flew from her hand and cracked against the seat in front of her.
Hayato's eyes went wide.
*What the—?!*
Before the thought could even finish forming—
The bus *lifted*.
Not metaphorically.
*Literally.*
For one impossible, gut-wrenching moment, Hayato felt his stomach plummet as the entire bus rose into the air. The ground disappeared beneath the windows. The tires left the asphalt. Weight simply… *vanished.*
His body floated slightly off the seat, the seatbelt he hadn't buckled offering nothing. His bag drifted beside him like a lazy ghost. Gravity had abandoned them.
A terrifying, sickening sensation of weightlessness gripped his entire body—the kind of feeling that screamed at every nerve, every instinct, that something was catastrophically, irreversibly *wrong*.
*What is happening?!*
The world tilted.
The sky appeared where the street should have been. The road swung overhead. Everything inverted in a single, nauseating rotation.
Metal screeched—a horrible, shrieking sound that tore through the air like a dying animal. The frame of the bus twisted. Windows cracked in spiderweb patterns.
Then—
**CRASH!!**
A deafening impact exploded through the bus.
Pain surged through Hayato's body like wildfire. His head snapped forward with brutal force, and something hard struck his forehead—the seat in front of him, the railing, he couldn't tell. White light detonated behind his eyes. The world spun wildly—streaks of color, flashes of broken glass catching the dying sunlight, metal folding inward.
The sound of shattering glass—sharp, crystalline, everywhere.
Twisted metal groaning under impossible pressure.
A scream—short, high, cut off abruptly.
Everything blended together into a storm of noise and force and pain, all of it collapsing inward, pressing him down, crushing the air from his lungs.
Then—
Darkness.
Complete.
Silent.
*Nothing.*
---
When Hayato opened his eyes again, he immediately knew something was wrong.
The ceiling above him was unfamiliar.
Not the sterile white tiles of a hospital. Not the dull, dented metal interior of a wrecked bus. Not even the wooden beams of his apartment.
It was *white*.
Pure, featureless, impossibly clean *white*.
Hayato blinked.
He was lying on his back on a hard, cold surface. The chill of it seeped through his shirt and pressed against his shoulder blades, his spine, the backs of his arms. He stared upward, his vision slowly sharpening, and found… nothing.
No lights. No fixtures. No seams.
Just an endless, flat white ceiling that seemed to glow faintly from everywhere and nowhere at once—a soft, ambient luminance with no identifiable source. It made his eyes ache.
He pushed himself up slowly.
His palms pressed flat against the floor—also white, also cold, also perfectly smooth. Like polished stone, but without texture. Without grain. Without even a scratch.
Hayato's gaze swept the room.
White walls.
White floor.
White ceiling.
No windows. No door. No furniture.
*Nothing.*
Just a featureless, sealed cube of white that stretched roughly five meters in every direction. It felt less like a room and more like the inside of a blank page—sterile, empty, *wrong* in a way that crawled beneath his skin.
His pulse quickened.
"Where… am I?"
He turned his head left. Right. Behind him. The same perfect, unbroken white in every direction.
No seams where a door should have been. No cracks in the walls. No vent, no panel, no handle.
Nothing.
His breathing grew faster.
*How did I get here? The bus—the crash—*
Fragments flashed through his mind. The lurch. The weightlessness. The horrible screech of metal. The impact.
Then nothing.
And now… *this.*
The panic came fast.
It started in his chest—a tight, squeezing pressure that wrapped around his ribs like a fist. His heart hammered against his sternum, each beat loud enough that he could hear it in the silence of the room. His palms grew slick with sweat against the cold floor.
Hayato scrambled to his feet.
The room swayed slightly—or maybe that was his own balance, still shaky, still disoriented. He stumbled toward the nearest wall and slammed his open palm against it.
*Solid.* Cold. Unyielding. The surface didn't even vibrate under the impact.
He pounded harder.
"Help!"
His voice bounced off the walls and came back to him flat and dead. No echo. No resonance. The room seemed to *swallow* sound.
"Is there anyone out there?!"
He moved to the next wall. Slapped it. Pressed his ear against it. Nothing. No hum of machinery, no distant voices, no vibration of a world beyond.
"Somebody help me!"
Silence answered.
That thick, heavy, suffocating silence that wasn't just the absence of sound but felt like a *presence*—pressing against his eardrums, filling the space between his heartbeats.
He slammed his fists again. Again. *Again.*
The impacts sent dull jolts of pain through his knuckles and up his forearms.
Nothing changed.
The walls didn't crack. The room didn't respond. No one came.
Minutes passed. Then more minutes. Then what felt like hours—though without a clock, without a window, without even the shifting of light, time became meaningless. It stretched and warped in this white void, each second blending into the next until Hayato couldn't tell if he'd been there for one hour or five.
His throat was raw from shouting.
His knuckles ached, the skin across them faintly reddened.
Eventually, the energy drained out of him like water from a cracked glass.
Hayato slid down the wall.
His back scraped against the smooth surface as he sank to the floor, legs folding beneath him. He sat there, shoulders slumped, head hanging forward, arms resting limp on his knees.
The panic hadn't disappeared. It had simply exhausted itself—burned too hot, too fast, and now it smoldered somewhere deep in his gut, waiting.
His breathing was slow now. Heavy.
*Think. Think, damn it.*
But there was nothing *to* think about. No clues. No context. No explanation. Just a white room and the memory of a crash that shouldn't have ended here.
*Am I dead?*
The thought landed in his mind like a cold stone dropped into still water.
He stared at his hands. They looked real enough. The reddened knuckles stung. His muscles ached. His mouth was dry, his lips slightly cracked.
*Dead people don't feel thirsty.*
He closed his eyes.
And waited.
---
He didn't know how much time had passed when the sound came.
A low, mechanical *hiss*—soft but unmistakable in the perfect silence of the room.
Hayato's eyes snapped open.
On the wall directly across from him, a vertical line of shadow appeared where there had been none before. It widened slowly, light spilling through the gap as a section of the white wall slid inward and to the side with a smooth, hydraulic whisper.
A door.
There hadn't been a door before. He was *certain* of it. He had pressed his hands against every inch of every wall.
But now, a rectangular opening stood in the wall—perfectly framed, perfectly sized, glowing with that same ambient white light from the other side.
Hayato rose to his feet.
His legs trembled beneath him—stiff from sitting too long, weak from the crash, from the stress, from the hours of nothing. He steadied himself against the wall for a moment, then stepped forward.
Slowly.
One step. Then another.
The doorway didn't close. It waited, open and still, like a mouth.
He reached the threshold and looked through.
Another white room.
The same dimensions. The same featureless walls, the same cold glow.
But this one wasn't empty.
In the exact center of the room sat a table.
It was small—waist-high, made of the same seamless white material as everything else, as though it had grown directly from the floor rather than been placed there. Its surface was perfectly smooth, perfectly clean.
And on that surface lay four cards.
Hayato stepped through the doorway.
The moment he crossed the threshold, the door behind him slid shut with a soft *click.* He spun around—but the wall was seamless again. No handle. No seam. No way back.
His jaw tightened.
*Forward, then.*
He turned back to the table and approached it cautiously, each step deliberate, his eyes locked on the four cards as though they might move on their own.
They were playing cards—standard size, standard design, lying face-up on the white surface.
Four of them, arranged in a neat horizontal row.
Each one displayed a different suit and number, their surfaces catching the ambient light with a faint, almost imperceptible shimmer that normal playing cards didn't have. The colors were vivid—too vivid. The reds were deep and rich like fresh blood. The blacks were absolute, like holes cut into the white table.
Hayato's gaze moved across them.
*Four cards. Why?*
No instructions. No sign. No voice telling him what to do.
Just four cards on a table in a room with no exit.
His fingers hovered over them. Hesitation pulled at his hand—a quiet instinct whispering that this choice, whatever it was, *mattered.*
But what choice was there?
Standing here forever wasn't an option.
Hayato's hand moved.
He picked up the card on the far left.
The instant his fingers closed around it, the other three cards *vanished.*
Not slowly. Not dramatically. They were simply *there*—and then they were *not.* No flash of light, no sound, no smoke. They ceased to exist between one heartbeat and the next, leaving behind nothing but the bare white surface of the table.
Hayato's breath caught.
He stared at the empty table for a long, frozen moment, his fingers gripping the single remaining card.
Then he looked down at what he held.
**The Two of Diamonds.**
The card sat in his palm, deceptively ordinary—a white rectangle with two small red diamond shapes printed in its center, the number "2" in each corner. Simple. Clean. The kind of card a child might pull from a deck during a family game night.
But something about it felt *heavy.*
Not physically. The card weighed almost nothing. But holding it gave Hayato the same feeling as standing at the edge of a rooftop—a quiet, primal awareness that he was holding something connected to something far bigger and far more dangerous than he could yet understand.
*Two of Diamonds. What does it mean?*
Before the question could settle, another sound—the same mechanical hiss.
His head snapped to the right.
A second door opened in the opposite wall.
Light spilled through.
Hayato slipped the card into his pocket and walked toward it.
---
The room beyond was larger than the previous two.
Significantly larger.
The same white walls. The same sourceless light. But the ceiling was higher here—perhaps four meters—and the floor space stretched wide enough to feel almost like a small hall.
And it wasn't empty.
Six people stood scattered across the room.
Hayato stopped just inside the doorway, and six pairs of eyes turned to look at him.
For a moment, no one spoke.
He studied them quickly—an instinct that had kicked in before he even realized it.
A tall man with broad shoulders and a square jaw stood nearest to the center, arms crossed over his chest. His dress shirt was wrinkled and partially untucked, and a thin cut ran along his left cheekbone, dried blood crusting at its edges. Late thirties, maybe early forties. His eyes were sharp, assessing. He looked at Hayato the way someone might look at an unexpected variable in a calculation.
To his left, a young woman sat on the floor with her back against the wall, knees drawn to her chest. Her dark hair hung in loose, messy strands over her face, and her fingers gripped her own forearms so tightly that her knuckles had gone white. She was trembling—not violently, but steadily, like a wire under tension.
An older man—perhaps fifty, with graying temples and round glasses—stood near the far wall, hands clasped behind his back. His posture was unnervingly calm, though his face was pale and drawn.
A teenage boy, no older than seventeen, paced back and forth near the corner, chewing on his thumbnail. His eyes darted around the room with a jittery, restless energy that bordered on panic.
A woman in a business suit stood rigidly near the center-right, arms at her sides, staring straight ahead at nothing. Her expression was blank, but her breathing was too fast. Too controlled. The kind of measured breathing someone uses when they're barely holding themselves together.
And closest to the door where Hayato had entered, a young man about his own age leaned against the wall with an expression that hovered somewhere between confusion and poorly concealed fear. His hands were jammed deep in the pockets of his hoodie, and he gave Hayato a short, uncertain nod.
Six strangers.
All of them looked disoriented, frightened, and completely out of place—like they'd each been pulled from their own lives and dropped into this blank nightmare without warning.
*Just like me.*
The panic, the confusion, the desperate unanswered questions—he could see it all mirrored in their faces. Different expressions, different postures, but the same core terror sitting behind every pair of eyes.
*Where are we? How did we get here? What is this place?*
Hayato stepped further into the room.
The door sealed shut behind him with a soft *thunk*, and the finality of that sound made the teenage boy flinch visibly, his pacing stuttering to a halt.
A heavy silence wrapped the room.
Seven people. No answers. No exit.
Then—
The center of the floor *moved.*
A low mechanical hum vibrated through the ground—felt more than heard—and a circular section of the white floor began to rise. Slowly, smoothly, without any visible mechanism, a round platform ascended from beneath, bringing with it a table.
A round table made of the same seamless white material as everything else, its surface polished to a muted sheen. And arranged around it—exactly seven chairs.
White. Identical. Evenly spaced.
Seven chairs for seven people.
The precision of it sent a cold ripple down Hayato's spine.
*They knew. They knew exactly how many of us there would be.*
The six strangers exchanged tense glances. The broad-shouldered man uncrossed his arms slowly. The woman in the business suit took a single step backward. The teenager's eyes went wide.
Before anyone could speak—
**DING.**
A clear, synthetic chime rang through the room—sharp, crisp, and coming from everywhere at once. It cut through the silence like a blade.
Then a voice spoke.
It was calm. Genderless. Perfectly enunciated. And completely devoid of warmth.
**"Players detected: Seven."**
The word *players* landed in the room like a dropped grenade.
**"All players must take their assigned seats."**
**"Failure to comply within thirty seconds will result in elimination."**
The voice vanished as abruptly as it had appeared.
For one heartbeat, the room was frozen.
Then the panic detonated.
"What does that even mean?!?!" The teenage boy's voice cracked, his face draining of color. "Elimination?! What does—"
"Sit *down!*" The broad-shouldered man moved first, his long stride carrying him to the nearest chair. He pulled it back and dropped into it with the grim efficiency of someone who had already decided that asking questions was a luxury they couldn't afford.
The woman in the business suit didn't move. Her rapid breathing had stopped entirely—she was holding her breath, her eyes locked on the chairs as if they were loaded weapons.
The young woman against the wall let out a small, choked sound—half gasp, half sob.
Hayato didn't understand what was happening.
Not truly. Not logically. Nothing about this made sense—the white rooms, the cards, the voice, the word *elimination.*
But deep in his gut, past the confusion and the fear and the thousand unanswered questions—something understood.
Something primal. Something ancient. The same instinct that had made early humans flee from shadows in the dark, that made prey animals freeze at the snap of a branch.
*If I don't sit down, something terrible will happen.*
He didn't question it.
Hayato moved.
His legs carried him to the nearest empty chair, and he sat down in one swift motion. The seat was cold beneath him. Hard. Unyielding.
Seconds ticked by—invisible, uncountable, but *felt.*
The older man with glasses moved next, lowering himself into a chair with deliberate care. Then the young man in the hoodie, who practically threw himself into a seat. The teenager scrambled to a chair. The trembling young woman rose from the floor on shaking legs and stumbled toward the table, collapsing into a seat.
The woman in the business suit was last.
She stood for what felt like an eternity—five seconds, maybe six—her jaw clenched, her eyes burning with something that looked less like fear and more like *fury.*
Then she sat.
The moment her body made contact with the chair—
**CLACK.**
Metal restraints snapped around Hayato's wrists.
Cold, rigid bands of steel emerged from the armrests and locked tight against his skin with mechanical precision. A second pair clamped around his ankles, pinning his legs to the front of the chair.
The snap of metal echoed seven times around the table.
"What—?!"
Hayato pulled against the restraints instinctively. The metal didn't give. Not even a millimeter. It was tight enough to hold him immovable, but not quite tight enough to cut off circulation—a precision that felt almost *considerate*, which somehow made it worse.
Around the table, chaos erupted.
"What is this?! I can't move!" The teenager yanked his arms violently, the chair rattling against the floor but going nowhere.
"Let me out! LET ME OUT!" The young woman was screaming now, pulling against the wrist restraints so hard that the veins in her neck stood out like cords. Tears streamed down her face.
The broad-shouldered man tested his restraints once—one firm, controlled pull—and then went still. His jaw was set like iron, his eyes scanning the room with cold intensity.
The older man with glasses sat perfectly still, though his face had gone a shade paler.
The woman in the business suit stared down at the metal around her wrists. Her expression hadn't changed. That blank, controlled mask. But her hands—her hands were trembling.
The restraints didn't budge. Didn't tremble. Didn't loosen.
They held all seven of them in place with absolute, indifferent authority.
A quiet hum rose from the table.
Seven thin panels slid open in the surface directly in front of each seat, and from each opening, a black tablet rose smoothly into position—angled slightly toward each player, screens dark, surfaces gleaming like polished obsidian.
Hayato stared at the blank screen in front of him.
His heart pounded against his ribs like a fist trying to break free. Each beat was so loud, so forceful, that he could feel it in his throat. In his fingertips. In the space behind his eyes.
The room had gone deathly quiet.
Even the screaming had stopped.
Seven people, locked in place, staring at dark screens, waiting for something none of them could see.
The seconds stretched.
The silence deepened.
And then—
The voice returned.
Calm. Cold. Final.
**"GAME START."**
A pause—measured, deliberate, *theatrical.*
**"TWO OF DIAMONDS."**
The tablets flickered to life simultaneously, their screens flooding with stark white light that cast harsh shadows across every face at the table. Bold black text materialized across each screen, letter by letter, as if being written by an invisible hand.
Hayato's eyes locked onto the words as they formed.
His blood turned to ice.
**"THE SEVEN-PIECE TRUTH PUZZLE."**
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