The spine-sword dragged behind her, carving a thin line through broken asphalt.
She'd walked for blocks now. Maybe more. The wound was closing, slowly, too slowly, but closing. She'd found a weak devil hiding in an alley. Small. Pathetic. Easy. Its blood bought her another hour.
The sword dissolved. She didn't need it anymore.
"Fraud," she muttered. The word tasted like poison. "Coward. Pretender."
No answer. Just empty streets and the first grey light of dawn.
She passed a convenience store. Boards over the windows. Graffiti on the walls. And on the walls-
A poster.
Chainsaw Man.
Grinning. Posing. Engines whirring. Looking like a hero.
She stopped.
"You."
The word came out quiet. Flat. The kind of quiet that came before something broke.
She walked to the poster. Stared at his stupid face. At the chainsaws. At the stupid hero pose.
"This is your fault."
Her hand pressed against the paper. Right over his grinning mouth.
"You think hiding somewhere in this city keeps you safe? You think I can't find you?"
The poster didn't answer.
"Nukes." The word dripped with hate. "You made them forget nukes. You made them forget what real war looks like. You made them weak and soft and STUPID."
Her fingers curled. The paper crinkled.
"I'm going to find you. I'm going to make you remember. I'm going to make you throw up every single one until the sky burns again."
She tore the poster down.
Let the pieces fall.
Walked away without looking back.
-----------------------------------------------------------
The apartment door opened.
Asa's body stepped inside. Moved to the bed. Collapsed.
And slept.
-----------------------------------------------------------
Asa's eyes opened.
The ceiling. Familiar. Her apartment. Her room. Morning light through the curtains.
She tried to sit up-
And stopped.
Something was wrong.
Her body felt... light. Different. She looked down at her hands. Normal. Looked at her arms. Normal. Looked next to her-
And froze.
A girl was lying there.
Same face. Same hair. Same school uniform. Same everything.
But the eyes, when they opened, were wrong. Ringed. Orange. Predator's eyes.
And a scar split across the right cheek. Fresh. Deep. A cross.
Asa's mouth opened. No sound came out.
The girl sat up. Turned. Looked at her with those terrible eyes.
"This is no dream, girl."
The voice was hers. But not. Wrong pitch. Wrong weight. Wrong everything.
Asa's hand moved before she could think- reached out, and pinched her own cheek. Hard.
The girl didn't flinch. Didn't react. Just stared.
"This is your reality." Flat. Cold. Final. "Hurry up and accept it."
Asa shook her head. Backed away. Pinched herself again, still hard enough to hurt.
The girl groaned.
"I told you this is no dream, idiot!"
Asa's heart hammered. This wasn't happening. This couldn't be happening.
"Face reality!" The girl gestured sharply at the small television in the apartment. "Look at the news! Your teacher and class president both died yesterday! We killed them together!"
'We.'
The word hit like a physical blow.
And then-
Flashbacks.
The street at night. The president's body twisting, swelling, becoming monster. The teacher screaming. Running. Dying.
And her own hands-
'No.'
-her own hands doing things she didn't understand. Moving on their own. Fighting. Killing.
'No no no-'
And something else. A fight. Later. Against... something. Someone. A boy from her class? Tanaka? There was blood. Pain. A cut across her-
"E-excuse me?!" The words tore out of her. "I didn't kill anyone! You- YOU killed them!"
She launched herself at the girl. Hands out. Aiming for shoulders, for throat, for anything-
Her hands passed through.
Like air. Like smoke. Like the girl wasn't there at all.
Asa stumbled. Caught herself. Stared.
The girl hadn't moved. Just watched. Those ringed eyes tracking her with something like amusement.
"You can't touch me." The voice was calm. Almost gentle. Wrong. "Your brain is seeing me as a hallucination."
Asa's breath came in gasps. "H-hallucination?! What are you?!"
The girl tilted her head. Just slightly. Those orange eyes boring into hers.
And smiled.
Not a nice smile.
"You died yesterday."
"I am the War Devil." She gestured at herself with a smug aura. "I claimed your body."
Asa stared.
The War Devil stared back.
Ringed orange eyes. Cross-shaped scar. Her own face wearing an expression she'd never made in her life.
'War Devil,' Asa's mind repeated. 'War. Devil. Claimed. Your. Body.'
The words made sense individually. Together, they formed something her brain refused to process.
-----------------------------------------------------------
The walk to school was automatic.
Left foot. Right foot. Cross the street. Avoid the cracks. Her body knew the way even if her mind was somewhere else entirely.
The War Devil walked beside her. Asa couldn't tell. She just... was there. Always at the edge of vision. Always watching.
The morning air was cold. Normal. The sun was up. Normal. People passed them on the street- salarymen, students, an old woman with a shopping cart. Normal normal normal.
Nothing was normal.
Asa's mouth opened. Closed. Opened again.
"If you took my body..." The words came out quiet. Careful. Like asking a bomb why it hadn't exploded yet. "How can I still move?"
The War Devil glanced at her. Half a look. Dismissive.
"I kept half your brain still intact." She said it like it was obvious. Like leaving half someone's brain was a reasonable thing to do. "I'm unfamiliar with human society. This should keep them from finding out I'm a devil at school."
Asa processed that.
Half her brain.
Intact.
The other half-
She stopped walking.
The War Devil stopped too. Turned. Raised an eyebrow.
"Why do you want to go to my school this badly?" Asa's voice was steadier than she expected. Maybe the shock was wearing off. Maybe she was too tired to be properly terrified anymore.
The War Devil's expression shifted. Something sharp entered those orange eyes.
"Because Chainsaw Man's there."
Asa blinked. "What...?"
"Check your pocket."
Her hand moved before she could think, reached into her uniform pocket. Found something small. Hard. Pulled it out.
A button.
Plain. Brown. The kind that belonged on a school uniform.
"A devil killed by Chainsaw Man was found clutching that button." The War Devil's voice was flat. Matter-of-fact. "I checked into it. Found out it's used for school uniforms."
She smiled. That wrong smile.
"That means Chainsaw Man is going to your school... incognito."
Asa stared at the button. At the tiny scrap of thread still attached. At the proof that something impossible was sitting in her palm.
Chainsaw Man. At her school. Hiding. Pretending to be normal.
Just like-
She looked up. At the War Devil. At the creature wearing her face and half her brain.
Just like her.
"There might be other devils there too." The War Devil's tone was casual. Almost bored. "Not my primary target. But if they get in the way..."
She didn't finish.
Didn't need to.
Asa looked down at the button again. At the school ahead. At the building where her teacher and class president weren't anymore.
She kept walking.
What else could she do?
They reached the entrance of the school.
The building loomed ahead- familiar windows, familiar doors, familiar hallways full of familiar people who would look at her now with those dead eyes. The ones who'd been there. The ones who'd seen. The ones who knew she'd been standing over Bucky's body with blood on her hands.
Asa stopped walking.
Her feet wouldn't move.
"On second thought..." The words came out small. Hollow. "I don't want to go in there."
Beside her, the War Devil's expression flattened.
"If you can't obey me, I can always take the rest of the brain." No emotion. Just fact. "This time you'll die for sure."
Asa thought about her class. About their faces. About the way they'd look at her now, accusing, afraid, knowing. Bucky was dead. The president was dead. The teacher was dead. And she was still here, still breathing, still walking around like nothing happened.
'I killed them,' she thought. 'Not with my hands. But I-'
"I still..." Her voice cracked. "I still don't..! I don't want to go to school!"
The War Devil's eyes narrowed.
"I'm not bluffing. You will be dead and gone."
Asa hunched forward. Like a zombie. Like a puppet with cut strings. She didn't know how to react. Didn't know what to feel. Didn't know anything except that every step toward that building felt like drowning.
"Do you hear me, girl?!" The War Devil's voice sharpened. "You'll die!"
Asa's mouth opened.
Closed.
Opened again.
"I'd rather die..." The words came out quiet. Certain. "Than go in there."
Silence.
The War Devil stared at her. For a long moment. Then-
"Ugh!" She threw her hands up. "What a pain!"
Asa didn't respond. Just stood there. Hunched. Empty.
"Hey."
The voice came from nowhere.
Asa looked up.
A boy stood in front of her. Tall, way taller than her. Dark hair, messy, falling over his forehead. A mischievous smile on his face. He was looking down at her with something like curiosity.
"You okay there?"
Asa stared.
Deadpan. Empty. Her face said nothing because there was nothing left to say.
The boy tilted his head. The smile didn't waver.
"Want me to walk you to the nurse's office?"
Asa's brain short-circuited.
"Uh-" She straightened. Too fast. Too stiff. "Uh! I'm okay! No problems here!"
Behind her, the War Devil materialized, leaning close, whispering directly into her ear.
"Girl! Ask if he knows Chainsaw Man's secret identity!"
"Will you shut up for a second?!"
The words were out before Asa could stop them.
The boy blinked. "Huh?!"
Asa's face went red.
"Oh, err-" She waved her hands frantically. "I wasn't talking to you!"
The War Devil made a disgusted sound.
"Tsk! Fine, I'll ask him myself!"
Asa barely had time to process before-
Control shifted.
Her body straightened. Her eyes changed, ringed orange flooding in. Suddenly, a scar appeared on her cheek.
The boy noticed.
Of course he noticed.
"Hey." The boy's eyes narrowed. "Those scars..."
Asa, the real Asa, the ghost in the back, watched in horror as her own body moved without her.
'M-' Her thoughts stuttered. 'M- my- my body!'
The War Devil smiled with Asa's mouth. Stepped closer. Looked up at the tall boy with an intensity that didn't belong in a high school entrance.
"Hey. Boy." Her voice was different now. Lower. Sharper. "Do you know anything about Chainsaw Man going to this school?"
The boy studied her. Didn't flinch. Didn't back away.
"I heard that was a rumor..." He shrugged. Easy. Relaxed. "But I just transferred here, so I don't know much else. Only that Chainsaw Man might be in the Devil Hunter Club, or something."
The War Devil's eyes flickered. Processing. Calculating.
"Hmm..."
She looked at him. Really looked. At his height. At his ease. At the way he hadn't run or screamed or done any of the things humans usually did when faced with something clearly wrong.
A slow smile spread across Asa's face.
Wrong smile. Too knowing. Too sharp.
She stepped closer. Into his space. Under him. Looking up with those ringed orange eyes in a way that was too close, too intense, too much.
"Hey. Boy."
She posed. A bend of the neck. A hand on her chest like royalty presenting themselves. Like something out of a old painting. Like a devil playing pretend at being human.
Asa, the ghost, the passenger, watched from somewhere deep inside.
'What is she-'
"Shall I make you my boyfriend?"
The words hung in the air.
Asa's brain went white.
The boy looked at her.
For a long moment.
Then, calmly, easily, with that same mischievous smile, he stepped around her.
"Nah... I'm good."
He walked past. Hands in pockets. Not looking back.
"Bye."
The War Devil stood there. Frozen. Asa's body. Asa's face. Asa's hand still posed on her chest.
Silence.
The boy disappeared through the school entrance.
Asa, the ghost, took a full second to process what just happened.
Then her face went red.
Not pink. Not flushed. Red. The color of a tomato. The color of dying of embarrassment. The color of-
"Whhh..." Her voice came out strangled. "Whhhhy did you ask him out?!"
The War Devil blinked. Looked down at herself. Then back at where the boy had gone.
"I have the power to turn what's mine into weapons."
She said it like it explained everything.
Asa stared at her.
The War Devil stared back.
"If that boy fell for me, it would make him mine, no?" The War Devil tilted her head, Asa's head, watching the entrance where the tall boy had disappeared. "I could turn him into a weapon then. I want to turn as many humans into weapons as I can... to go to war with Chainsaw Man."
Silence.
Asa's thoughts raced.
'Turning humans into weapons?'
'Going to war with Chainsaw Man?'
'Huh?'
'Uh!'
'Wait a sec, hold up!'
'I'm involved in some serious stuff now, aren't I?'
'This devil killed the teacher and the class president!'
The weight of it crashed down on her.
'I mean, a War Devil is bad news, isn't it?'
'The scarier a devil's name, the stronger it is.'
'Can I even turn back into a normal person to begin with?'
'Sooner or later, won't this devil take over my body for good?'
Her heart hammered. Her thoughts spun faster and faster.
'I have to talk to a Devil Hunter..!'
The War Devil's voice cut through, calm. Amused. Knowing.
"Spill the beans about me to anyone and you're dead."
Asa froze.
"You can't hide your thoughts from me." The War Devil didn't turn. Didn't need to. "I am you."
A pause.
Then, almost gently...
"You finally understand your situation. Good."
The War Devil turned. Faced the school entrance. Asa's ringed orange eyes looking toward the building where the Devil Hunter Club supposedly existed.
"We're going to join the Devil Hunter Club to find Chainsaw Man."
Statement. Not suggestion.
"If we can beat Chainsaw Man, I'll return your body." She glanced sideways, at the space where Asa's ghost existed. "I trust you'll cooperate?"
Asa's thoughts churned.
Trapped. Half a brain. A devil wearing her face. A target on her back. And now, join the Devil Hunters? Pretend to be normal? Hunt for Chainsaw Man?
'What choice do I have?'
She took a breath. The kind that didn't exist anymore in the body she couldn't control.
"I'll... help you!" The words came out firm. Desperate. "So you better give back my body!"
The War Devil smiled.
Not a nice smile.
But a satisfied one.
"Good."
She walked toward the school entrance. Asa's body moving. Asa's legs carrying them both into the building where teachers and students and maybe Chainsaw Man waited.
Asa, the ghost, the passenger, could only watch.
And hope.
-----------------------------------------------------------
Tanaka woke up.
The ceiling was familiar.
Everything normal.
Except-
They sat up too fast. The room spun. Their hand went to their head, and stopped halfway.
Their arm.
Their left arm.
It was covered in bandages. Fresh ones. Neat ones. The kind someone else had put on while they were unconscious.
Tanaka stared at it.
'What...?'
Memory came in fragments. The street at night. The president turning into a monster. Asa fighting. Asa killing. Asa looking at them with eyes that weren't hers.
And then-
Pain. So much pain. Their arm turning inside out. Bones breaking. Flesh tearing. The voice in their head saying thank you.
They looked down at their body.
Their uniform was ruined. Torn. Bloodied. Dried brown stains covered everything. Their chest. Their legs. Their remaining arm. And underneath the torn fabric...
Scars.
Not old ones. New ones. Dozens of them. Maybe hundreds. Crisscrossing their skin in patterns they didn't recognize.
'What the-'
They threw off the blanket. Stood too fast. Almost fell. Caught themselves on the wall.
Their room. Same as always. Small. Empty. A desk. A chair. A window overlooking the alley.
And on the desk...
A knife.
They didn't remember owning a knife.
They didn't remember a lot of things right now.
Tanaka grabbed it. Held it. The weight was familiar in their hand. Too familiar.
'Why is this familiar?'
They looked at their bandaged arm. At the scars on their chest. At the ruined uniform on the floor.
'I'm losing my mind,' they thought. 'This is it. The stress. The trauma. I finally snapped.'
The knife trembled in their grip.
'I'm seeing things. Hearing things. My arm moved on its own last night. I have scars I don't remember. I-'
"Good morning."
Tanaka froze.
The voice came from nowhere. Everywhere. Inside their head.
"You're awake. Excellent. I have a lot to explain."
Tanaka's eyes darted around the room. Empty. No one.
"Who-"
"Look down."
They looked down.
At their left arm. At the bandages.
Something was moving under them.
Tanaka stumbled back. Hit the wall. The knife came up, pointed at their own arm.
The bandages shifted. Bulged. And then-
Fingers. No. Not fingers. Something else. Small appendages pushing through the wrappings. And beneath them-
An eye.
Opened.
Looked directly at Tanaka.
"Hello."
Tanaka screamed.
Not loud. Not long. Just a strangled sound of pure what the fuck.
The eye blinked.
"There's no need for that. I'm part of you now. Well-" The voice paused. Considered. "I've always been part of you, technically. But now I'm here. In the front. Talking. It's an improvement, really."
Tanaka's hand shook. The knife pointed at the eye. At the thing growing from their arm.
"I'm going to cut it off," they said. Voice flat. Calm. The calm of someone who'd completely detached from reality. "I'm going to cut it off and then I'm going to the hospital and they're going to give me medication and this will all go away."
The eye blinked again.
"That seems excessive."
"I'm not having a conversation with my arm."
"You're already having a conversation with your arm." The voice was patient. Annoyingly so. "The cutting part would just make things messy."
Tanaka raised the knife.
The arm moved, faster than should be possible. The bandaged limb whipped up, caught their wrist, held it. Not hard. Just... firm.
"Listen," the voice said. "I understand this is confusing. The body horror. The memory gaps. The sudden emergence of a second consciousness in your nervous system. But if you'll just calm down for a moment, I can explain-"
"Explain what?!" Tanaka wrenched their wrist free. Backed away. Pointed the knife again. "Explain why I have scars I don't remember?! Why my arm grew an EYE?! Why I woke up covered in blood with NO MEMORY of-"
"Fighting the War Devil."
Tanaka stopped.
"...What?"
The eye watched them. Calm. Ancient. Patient.
"Last night. You fought the War Devil. Well-" A pause. "I fought the War Devil. Using your body. You watched. You felt everything. And then you passed out and I brought us home and bandaged your wounds."
Silence.
Tanaka stared at their arm.
"I'm schizophrenic," they said quietly. "That's what this is. A break from reality. Hallucinations. Delusions. I need help."
"You're not schizophrenic."
"You would say that. You're the hallucination."
The eye blinked. Once. Slowly.
"I'm not a hallucination. I'm a devil. The Human Devil, specifically. And three years ago, on the night your sibling died in that fire, you made a contract with me."
Tanaka went very still.
The fire.
Their sibling.
The scars on their arms.
"How do you know about that."
"Because I was there." The voice was softer now. Almost gentle. "I watched you try to save them. I watched you fail. I watched you burn. And when you were lying in the street, screaming, dying-"
"I didn't die."
"No." The eye almost seemed to smile. "You made a contract. You gave me your skin. When you die, it becomes mine. In exchange, I gave you power. The ability to survive. To keep going. To feel less."
Tanaka's grip on the knife loosened.
'Feel less.'
Is that why-
Is that why nothing ever mattered? Why they never cared? Why they watched the world like a movie through fogged glass?
"That's right." The voice confirmed their thought. "I've been with you for three years. Sleeping. Waiting. Learning. You felt my presence as numbness. As distance. As not caring. Because I was taking the edge off. Blunting the pain. Making sure you could survive."
The eye watched them.
"And last night, when the War Devil attacked, I woke up. Protected us. Fought for us. Kept us alive."
Tanaka stared at their arm.
At the eye.
At the thing that had been inside them for three years without them knowing.
"I don't..." They swallowed. "I don't believe you."
"That's fine." The voice was calm. "You don't have to believe me. But you can't cut off this arm. It's part of us now. And we need it."
"We?"
"Us." The eye blinked. "You and me. We're sharing this body. For now. Until the contract ends."
Tanaka's mind raced.
Devils. Contracts. War. Fighting.
Last night.
Asa.
The way she'd looked at them with those wrong eyes.
"She's the same," Tanaka said slowly. "Asa. She's like me."
"Not exactly." The voice was thoughtful. "She's possessed. Fully. By the War Devil. You're... different. You're a contractor. I live with you, not in you. We're separate. Mostly."
Tanaka looked at the knife in their hand.
At their arm with the eye.
At the ruined uniform on the floor.
At the scars covering their body, scars from a fire they'd tried to forget, from a pain they'd never processed, from three years of being numb without knowing why.
"I want to wake up now," they said quietly. "This is a nightmare. I want to wake up."
The eye watched them.
Said nothing.
Because what was there to say?
Tanaka wasn't asleep.
And this wasn't a nightmare.
It was just their life now.
Tanaka stared at their arm.
The eye stared back.
"So." Tanaka's voice was flat. Too flat. The kind of flat that came from running out of emotional room. "How do I deal with... that?"
The eye blinked. Considered.
"You want it gone?"
"Yes."
A pause.
"Close your eyes."
Tanaka hesitated. Then slowly obeyed.
When they opened them again, the eye was gone. Just bandages. Just skin underneath. Nothing moving. Nothing watching.
But the voice remained.
"Better?"
Tanaka didn't answer. They flexed their fingers. Rolled their shoulder. The arm felt normal. Just an arm.
"I could always talk in your head," the voice continued. "But you wouldn't have believed me. Would've thought you were crazy. This way, you still think you're crazy. But at least you're listening."
Tanaka sat on the edge of their bed. The knife still in their hand. They didn't remember still holding it.
"The War Devil." Their voice was quiet. "Why did she attack me?"
"She didn't attack you." The voice corrected gently. "She attacked me. You just happen to be the body I'm currently inhabiting."
Silence.
Tanaka processed that. The words were simple. The meaning was not.
"She attacked you."
"Yes."
"Why?"
A long pause.
"Because I'm a fraud."
The words hung in the air. Heavy. Final.
Tanaka waited.
The voice continued slower now. Like it was choosing each word carefully.
"I wear human skin. I wear human faces. I walk through human lives and pretend I'm one of them. And she, War, she despises that. She thinks I'm a coward. A pretender. A thing that kills what it wants to become instead of earning it."
Tanaka's brow furrowed. Just slightly.
"Kills what it wants to become?"
Another pause.
"I want to be human." The voice was quiet. Almost ashamed? No. Not ashamed. Something else. Something Tanaka couldn't name. "I've spent millennia studying humans. Watching them. Learning them. Trying to understand what makes them them. And the only way I've found, the only way that works, is to..."
"To?"
"To wear them. To become them. To take their skin and their voice and their life and be them for a while."
Tanaka's stomach turned.
Not violently. Just a shift. A recognition.
It kills people, they realized. It kills them and wears their skin.
"Yes." The voice confirmed. "That's what I am. That's what I do."
Tanaka should have felt horror. Should have felt revulsion. Should have wanted to cut the arm off right now, immediately, consequences be damned.
But they didn't.
They just sat there. Listening. Observing. Distant.
Another long silence.
Then: "Asa." Tanaka's voice was flat. "Why did she get possessed?"
"I don't know."
"You don't know."
"I don't know everything." The voice was calm. Unbothered. "I've been asleep for three years. Inside you. Not paying attention to the outside world. Whatever happened to that girl, it's recent. And it's probably connected to him."
"Him?"
"Chainsaw Devil."
Tanaka's brain snagged on the words.
"Chainsaw Devil..." They frowned. "Like... Chainsaw Man?"
"Yup." The voice was almost casual. "Right, that dude."
Another pause.
Tanaka stared at nothing.
Chainsaw Man. The hero. The devil who killed devils. The one on all the posters and merchandise and lunch boxes. The one Asa had been so angry about.
"A devil," they said slowly. "Possessing a girl. To fight another devil. Over Chainsaw Man?"
"Simpler than you'd think." The voice almost laughed. "Devils are simple creatures. We want things. We hate things. We fight. War wants Chainsaw Man dead. I happen to exist. She hates me too. Simple."
Simple.
Sure.
Simple.
Tanaka was quiet for a long moment.
Silence.
Tanaka sat there. On the edge of their bed. Knife in hand. Devil in their head.
They should be angry.
They knew that.
They should want to fight. To cut. To burn this thing out of them no matter the cost.
They stood.
Got dressed.
The uniform was ruined. They found another. Old. Slightly too small. It would do.
Their arm, the left one, moved normally. Just an arm. Just flesh and bone and bandages hiding something that shouldn't exist.
Nightmare, they thought. Just a nightmare.
They walked to the door.
Paused.
"Are you going to take over again?" Their voice was quiet. Flat.
"Only if you're going to die." The voice was calm. Matter of fact. "I kept us alive last night. I'll do it again. But I don't want control. I want to watch. To learn. To feel what you feel."
"Through me."
"Yes."
"And if I try to tell someone? Get help?"
The voice was quiet for a long moment.
Then: "I won't stop you. I can't. You're the contractor. You have free will."
A pause.
"But if you tell anyone, if you bring Devil Hunters or anyone who might try to separate us, I'll have to protect myself."
Tanaka waited.
"And protecting myself means protecting this body. Which means taking control. Which means fighting. Which means people dying." Another pause. "I don't want that. I don't want to fight. I want to watch. To learn. To understand. But I won't let them take you from me."
The words hung in the air.
I won't let them take you from me.
Like it cared.
Like Tanaka was precious.
Like this was anything except a predator protecting its prey from other predators.
Tanaka stared at the door.
I should tell someone, they thought. I should run. I should.
But they didn't feel it.
The urgency. The fear. The need to survive.
They just felt distant.
Like watching someone else's life.
Like always.
Nightmare, they thought again. Just a nightmare.
They opened the door.
Walked out.
Toward school. Toward Asa. Toward whatever came next.