A different fear hunts him every night.
If he survives, morning comes and the wounds fade.
If he fails five times, the scars stay. Then the real nightmare starts.

Rinkān is fourteen, short, wiry, always trying to laugh things off. Messy brown hair, brown eyes, athletic but not imposing. Just another eighth grader who sits too high on the bleachers so he can stare at the hottest girl in school without getting caught.

Her name is Aijin. Pale skin. Long light pink hair that swings when she jumps. Red eyes that seem loud against her shy, quiet voice. Extra attention on her curves every time she lands a cheer pose. On the court she looks fearless. Off the court she hides behind friends and noise. No one at school knows she spends her nights in cosplay forums. Rinkān does not know that yet either. He only knows he cannot stop looking at her.

For a week or two, life is almost normal. Class. Jokes with his friend Kuinshī. Bleachers. Aijin’s practice routines flashing into slightly spicy fantasies, then soft snapshots of a future he will probably never have. Rinkān imagines kids, festivals, walking home together. His heart races. His brain mocks him. He laughs it off.

In the corners of every bright scene, something tall watches. A dark figure at the back of the classroom that no one notices. A shape too long and too still high in the empty rows of the gym. It never speaks. It never moves in full view. It is just there. Wrong. Growing.

At night, the wrongness moves closer. Weight presses on his chest. Air thickens. Whispered breath at his ear, saying his name, almost friendly, almost amused. Rinkān cannot move. Cannot scream. The bedroom doorway stretches, full of a shadow that is darker than the dark. When he finally jerks awake, there is no mark on his skin. Only sweat and a pounding heart that refuses to calm.

The nights are not dreams. They are appointments.

The demon that sits on his chest is not a single monster. It is a key. It unlocks a different phobia every time he closes his eyes. In this world, fears are not metaphors. They are spaces you can run through. Teeth that can cut. Hands that can pull you apart.

If Rinkān survives, sunrise resets his body.
If he dies, he jolts awake, whole again.
Until he accumulates five failed nights. Then the damage does not disappear. Scars remain. Nerves remember. Each later failure digs deeper.

And sometimes, when he pushes back hard enough, the night leaves something behind. A Night Mark. A sigil on skin, or a change in his senses, a tiny power that only answers inside the nightmare. Every Mark must be trained in later nights, while he is hunted. Training is not safe. Training is just another way to die slower.

This first book follows the opening arc of his war against sleep. Three long chapters. Seven or eight nights that carve the shape of the series.

CHAPTER ONE: DARK CORRIDORS

Chapter One begins on the bleachers.

Rinkān jokes with Kuinshī. His eyes keep drifting back to Aijin as she flips and lands in perfect rhythm. In his head she is closer, sweat glowing under the gym lights, lips parted as she laughs just for him. The fantasy sharpens into tiny domestic flashes. Kids with light pink hair and brown eyes. Aijin holding a baby on her hip, still in a cheer outfit. A flash of wedding suits. Then the image splits. Her smile stretches. For a heartbeat her face melts into a ragged dark mouth that does not belong to any human. He blinks. It is gone. He blames hormones and hunger.

Class, homework, the walk home. Shadows cling to him like second skin. The tall figure stands where adults should stand. Behind a teacher. In a reflection. On his street, just beyond the streetlight, as if waiting for curfew. Rinkān feels watched but cannot prove it. He almost texts Kuinshī about it, then deletes the words. Instead he sends a dumb meme and pretends everything is fine.

That night he scrolls his phone, replays a clip of Aijin cheering. The room grows quiet. The air gets thick. A whisper threads through the dark, using his name with a cruel intimacy that makes the hair on his arms rise. His body locks. He cannot move his fingers. The last thing he sees before sleep snaps shut is the tall figure at his bedroom door, taller than the frame, head bowed as if deciding how to begin.

He wakes in a hallway that should not exist.

Black walls. Black ceiling. No sound. The only light is a tiny square of sickly glow far behind him, shrinking by the second. At the far end, a door stands open a crack. Between him and that door, the tall silhouette from his room stands perfectly still. It has no face, only height and a texture like static over its skin. As the light dies, the silence becomes suffocating. His own footsteps stop making noise. The hallway squeezes his nerves as if it is trying to choke his thoughts. Night One. Nyctophobia.

Rinkān runs.

Pure instinct. No plan. He sprints toward the dying light, the floor dropping in slabs behind him into a depth that has no bottom. The figure glides from the open door. It does not rush. It does not need to. It stretches, arms trailing streaks of darkness that smear across the walls. When it reaches for him, he dives, throws himself through the tiny crack of light at the far end. The world shatters into brightness. He wakes up screaming into his pillow. No wound. No blood. Only the memory of pressure and the echo of that silent hallway still clamped around his lungs.

Chapter One tracks the next few nights as the pattern locks in. Each day carries a tiny hint. Killing a spider in his room that afternoon. Choking on water in the shower. Feeling trapped in the back of a crowded bus. Each night answers with a tailored arena.

Spiders big enough to hear.
Water so cold it burns.
Walls that press together until bone creaks.

Rinkān fails some of these nights. Dies in webs. Drowns in black water. Crumples under crushing ceilings. Each time he snaps awake in his bed, he checks his skin. The first four failures fade. Pain lingers as ghost sensation, but no scars remain. He convinces himself it is still a dream. It has to be.

Then he fails the fifth night.

The next morning, a thin white line curls along his ribs, as if something sharp traced its favorite route while he slept. It does not vanish by lunch. It stings when he laughs. It throbs during gym. Rinkān understands. The rules are real. He is running out of clean skin.

CHAPTER TWO: BLOOD AND WHISPERS

By Chapter Two, the nights are no longer random stunts. The demon has learned his rhythm.

It keeps the classic phobias. Heights over endless city voids. Flooded locker rooms where corpses float just below the surface. Crowded stadiums of faceless people staring at him, waiting for him to fall. But each scenario carries a sharper edge, a new cruelty, a whisper that feels personal. It studies him. It wants more than fear. It wants intimacy.

Rinkān unlocks his first Night Mark in one of these mid-arc nights. Maybe it is in a cavern of crawling insects when he pushes his terror into anger and suddenly sees their movement while his eyes are shut. Maybe it is in a crushing elevator where his skin hardens for a second and keeps his ribs from snapping. The details change, but the result is the same. A black sigil appears on his skin. In the real world it is a faint, almost tattoo-like discoloration. Inside the nightmare it glows. A tool. A crutch. A promise of power, if he can live long enough to master it.

He experiments only at night. During the day he acts normal, or tries to. Jokes with Kuinshī feel forced. His grades slip. He zones out in class. Sleep deprivation grinds him down. Dark circles gather under his eyes. He hides new lines of scar tissue from gym teachers and family. No one notices. Or they pretend not to.

Aijin, at this point, is distant background. A glow across the court. A flash of pink hair in the hallway. She does not speak to him. Not yet. Rinkān is almost grateful. He is not sure he can hold a conversation without flinching at every shadow behind her.

The demon evolves. It shifts from generic horrors to targeted wounds. It learns his worst insecurity. Not just fear of spiders or drowning. Fear of being invisible. Too small. Too average. A joke in his own story. Nights twist into arenas where no one can see or hear him. Classrooms where everyone walks through his body. Streets where cars pass straight through his chest. A stadium where Aijin cheers for someone else while a copy of him stands right beside her, taller, cooler, unmarked. Rinkān is there too, screaming, unseen, unheard. Each failure cuts deeper than any claw.

By now his failure count has climbed. Several scars remain, pale ropes across skin that should never have needed armor. He understands that if this continues, it will not just be his body the demon ruins. It will be his sanity. Yet he cannot tell anyone. Explanations sound insane. And if he pulls someone else toward his darkness, what will the nights do to them?

The demon already has an answer.

CHAPTER THREE: HEARTBEAT PHOBIA

The turning point of Book One is philophobia. Fear of love itself.

The day before this night feels almost merciful. No spiders to swat. No flooding pipes. Just Aijin, closer than usual, because fate likes jokes.

Practice runs late. The gym lights dim. Most students drift home. Rinkān sits on the bleachers with a worksheet he is not really doing. Aijin stays on the court with one other girl, running through a new routine. When her friend leaves, Aijin keeps going. Music off. Only the echo of her sneakers on glossy floor and the soft thud of her breathing. For once, she glances up and actually sees him. Their eyes meet. She looks away fast, cheeks pink. He looks away faster, heart pounding loud enough he is terrified she can hear it.

That night, the demon gives him exactly what he thinks he wants.

He wakes not in a corridor or cage, but in a soft-lit empty gym. Bleachers. Court. The air smells of resin and sweat and something sweeter. Aijin stands at center court in her cheer outfit, alone, under a single bright light. No shadow figures. No teeth. No claws. Her skin glows. Her smile is soft and shy, the way he imagines it when he lies to himself about his chances.

She walks toward him. Her steps slow. Her body language is different. More deliberate. The closer she gets, the more the light slides off her uniform. Shadows pool over her chest and hips, always covering just enough. Everything else is bare, vulnerable, inviting. She reaches for his hand. Her fingers are cold.

There is a voice in the rafters. It whispers that this is all he has ever wanted. That no one else will ever look at him like this. That he should stop running, stop fighting, accept what he is given. Rinkān wants to believe it. Every lonely part of him strains toward her.

This is philophobia. Not just fear of rejection. Fear that loving someone will ruin them. Fear that his touch will drag Aijin into these nights and feed her to his demons.

When he leans closer, when their faces almost touch, her eyes break first. The red goes flat. The pupils blow wide and then split into jagged holes. Her lips peel back, not in a smile but in a crack. Flesh stretches, tears, opens into that same almost-mouth he saw in his first daydream. Beneath the glow is the original entity, delighted that he came willingly.

The scene shreds into horror. Multiple Aijins step out from behind the bleachers, half covered in shadow, half exposed. Some sob. Some laugh. Some beg him to hold them. Each time he reaches out, skin splits and reveals the demon beneath. The court floods with the sound of her voice, in love with him, disgusted by him, abandoning him, promising forever. He runs in circles, desperate to find one version of her that is real, that he can save. There is none. The demon is not showing him options. It is showing him a mirror.

Rinkān survives, just barely. Not by fighting. Not by accepting. By refusing to choose. He drops to his knees at center court, clamps his hands over his ears, and screams a single word no one hears. Stop. He refuses the fantasy in every form. Love with pain. Love with lies. Love with sacrifice. He chooses nothing. The court cracks. The gym tears open into dark. The Aijins freeze, then shatter into dust that smells like old paper and blood.

He wakes up with a new mark near his heart. A strange, hairline fracture scar that curves like a broken circle. It aches when he looks at Aijin the next day. It burns when she accidentally brushes his arm by the lockers and asks, hesitant, why he keeps showing up at school more bruised and stiff than the boys on the football team.

After philophobia, everything changes.

Rinkān cannot look at her the same. His crush has teeth now. He flinches when she is close. He avoids her eyes. When Kuinshī jokes about him “finally getting noticed,” he forces a laugh that sounds dead. The demon has learned a valuable lesson. Personal fears are more effective than any spider or drop. The nights grow hungrier.

The book ends in a slow, tightening spiral.

Aijin starts to really see him. The stiffness in his walk. The way he hides his arms. The thin scars at his ribs and over his shoulder when his shirt rides up. She is shy, but curiosity is stronger than fear. One day, almost by accident, her fingers trace along one of the pale lines near his side. The Night Marks wake under her touch. Rinkān freezes as a chill runs through them both, deep and electric.

He pulls away. Too late.

That night, as he lies in bed, the paralysis returns harder than ever. The tall figure at the door is not alone. Behind it, in the crack of dark, he thinks he sees a smaller shape, pink hair hanging over its face. He tries to move. Cannot. The rules have shifted. The scars have become doors. Touch them and you do not just see his nights. You step into them.

Book One stops on the edge of that new horror. Rinkān trapped between the ceiling and his own skin. Aijin on the cusp of being dragged into a maze built from his fears and her own. The demon is patient. It has all the time in the world. It has an entire catalog of phobias and a boy who refuses to stop caring.

Night Marks is a fast, brutal introduction to a world where adolescent crushes collide with predatory nightmares, where every fear has geography, rules, and blood. It establishes the core system of nightly phobia trials, the five-failure scar threshold, and the evolving Night Marks that blur the line between curse and weapon.

Most of all, it sets the hook of the larger series. Rinkān is no longer the only potential victim. Love is not just something that might heal him. It is leverage. It is bait. It is the one thing the demon can always use.