The Shinjuku Station platform was suffocating. The air was thick with the scent of ozone, rain, and the metallic tang of the tracks.

Alice, only twenty years old, gripped the sleeve of a man who looked like he was losing his mind. Daisuke was forty, a father of two, and a husband to a woman who was probably at home cooking dinner. Alice had been his "secret" for two years—a girl hidden away in a rented apartment, waiting for whatever crumbs of his time he could spare.

"Alice, let go," Daisuke hissed, his eyes darting around the platform, terrified of being seen. "It’s over. My wife knows. I can’t lose my family for you."

"Your family?" Alice laughed, a jagged, broken sound. "You were my family. If I can’t have you, Daisuke... then neither can she."

The headlights of the Yamanote Line train cut through the dark tunnel like a predatory eye. The platform began to vibrate. The warning chime started its mechanical song: Ding-dong. Ding-dong.

"Alice, what are you doing? let go of me!"

"Daisuke, please don't go, stay with me tonight." Alice whispered.

But in that moment of desperate obsession, as Alice tried to pull Daisuke closer, her foot slipped on the rain-slicked tiles. She lost her balance. In a frantic accident, her powerful grip dragged Daisuke down with her just as the train roared into the station. For a split second, they were just silhouettes against a blinding white light. Then, the world exploded into a roar of grinding metal and absolute darkness.

The Underworld

Alice didn't wake up in heaven. She didn't even wake up in a hospital.

She woke up on a plain of scorched, violet earth. The sky above was a swirling bruise of charcoal and crimson, with no sun or stars. The air smelled of sulfur and rotting meat.

"Daisuke?" she coughed, her throat feeling like it was filled with broken glass.

She wasn't alone. From the jagged horizon, shadows began to move. They weren't human. They were twisted, skeletal things with elongated limbs and eyes that glowed like embers. They let out a guttural, clicking sound that echoed across the wasteland.

"Oh god... no..."

Alice scrambled to her feet. Panic, cold and sharp, flooded her chest. One of the creatures lunged, its claws missing her shoulder by an inch. She turned and ran.

"Help! Someone help me!" she screamed, but her voice was swallowed by the howling wind.

She ran past rivers of black sludge and piles of white bone. Behind her, the pack of demons grew. They were faster than her, laughing in a language that sounded like tearing metal. She tripped over a jagged rock, her palms tearing open on the hot ground.

"Please! I don't want to be here!" she sobbed, crawling backward as the first demon loomed over her, its jaw unhinging to reveal rows of needle-teeth.

"STOP."

The word hit the wasteland like a shockwave. The demons instantly froze, then whimpered and retreated into the shadows. The sky itself seemed to tremble.

"You are a sinner, Alice," a voice boomed from the heavens. It was heavy, ancient, and terrifying. "You stole a life. You shattered a family. For this, these shadows would have feasted on your soul for eternity."

Alice trembled, looking up at the swirling clouds. "Please... give me a chance. I’ll do anything. I didn’t know it would be like this!"

"The Veil between worlds is thinning," the voice continued. "The creatures you just fled seek to enter the world of the living. A boy of Holy Blood—Anton Hitsugaia—is the only key to stopping them. He is the Sacred Knight, but he is currently a sheep among wolves."

A blue vortex of energy began to swirl in front of Alice, cold and inviting.

"Redeem yourself, Sinner. Return to the world not as a woman, but as a vessel of steel. Protect the boy. If he lives, your soul may be cleansed. If he dies... the demons you just met will be waiting for your return."

"I’ll do it!" Alice screamed, throwing herself into the blue light. "I'll be his shield! Just don't leave me there!"

Tokyo - 12:00:01 AM

Anton Hitsugaia was staring at his ceiling. His room was a mess of manga, game controllers, and sketches of a warrior girl he’d been dreaming about since he was a kid. He was the "Kyoto Loner" at his Tokyo high school—bullied, friendless, and totally over it.

"If only someone would save me from this boring life," he whispered.

CRACK-BOOM!

A violet bolt of lightning struck the apartment roof. The ceiling disintegrated into glowing particles. Anton let out a yelp as a heavy, silver figure plummeted through the roof and slammed directly onto his bed.

"WHA—?!"

Anton scrambled back, falling off his chair. Sitting on his bed was a girl with platinum hair and eyes like ice. She wore a high-tech suit of white armor and black fabric.

"Ow..." she muttered, rubbing her head. She looked at Anton and pouted. "The transition felt like being put through a paper shredder. My head is spinning."

Anton’s face turned bright red. She was the most beautiful girl he had ever seen, and she was currently sitting on his pillows. "Who... who are you? How did you... my roof!"

The girl stood up, her movements unnervingly smooth. She bowed low. "My name is Alice. I am an Android Warden. From today, I am your 24-hour bodyguard. Your life is no longer your own, Anton Hitsugaia."

Anton stared at her for five seconds, then his eyes rolled back, and he fainted.

11:00 AM

Anton bolted upright. "A dream! It had to be a dream!"

He looked at the ceiling. It was... fine? No hole. He laughed. "Man, I need to stop watching Ghost in the Shell before bed."

He swung his legs out of bed. Squish. He stepped on something soft.

He looked down. Alice was curled up on his floor, sleeping like a cat.

"GAAAH!" Anton screamed, jumping back against the wall. "You’re real! You’re still here!"

Alice groaned, waking up slowly. She rubbed her eyes and blinked at him. "You’re so loud in the morning. And I’m hungry. Do you have anything that isn't instant ramen?"

"Ramen?! You fell from the sky! You said you’re an android! What is happening?!"

Alice stood up, her sleepy eyes turning sharp and serious. "I told you. You’re the Sacred Knight. The demons from the place I just escaped—the Underworld—want your blood to break the energy seal. My job is to make sure they don't get it."

She stepped closer, her face inches from his. Anton could smell something like vanilla and hot metal.

"I'm Alice," she said, her voice dropping to a soft, dangerous lullaby. "And until your power wakes up, I’m the only thing keeping you from becoming demon food. Now... feed me. I need energy to keep you alive."

Anton looked at his small, messy life and realized it was gone forever. The girl from his drawings was real, she was an android, and she was hungry.

Anton Hitsugaia stared at the girl in his room. The morning sun was peeking through the curtains, but it didn't make the situation feel any more normal.

"Okay, look," Anton said, rubbing his temples. "It’s the first day of summer break. I don’t have school, which is great, but I can’t exactly walk around Tokyo with a girl wearing... whatever that is. You look like you escaped from a secret government lab."

Alice looked down at her white plating and glowing blue circuits. She tilted her head. "Is this not the current fashion for defenders of humanity?"

"No. Not even close," Anton sighed. "And the silver hair? You’re a walking neon sign. Can you... I don't know, look normal?"

Alice smiled. It was a small, knowing smirk. "Normal is easy, Anton."

She lifted her left wrist. A small panel flicked open, revealing a series of buttons and a miniature interface that glowed with a faint red light—it looked hauntingly similar to the tech used by the Predator in those old movies his dad liked. Her fingers danced across the buttons with mechanical precision.

Suddenly, a soft hum filled the room. Anton watched, mesmerized, as a dark pigment began to crawl from the roots of her hair down to the tips, turning the ethereal silver into a deep, glossy raven black. At the same time, her armor didn't just disappear; it seemed to fold into itself, pixelating and restructuring.

In seconds, the warrior was gone. Standing in her place was a classic Tokyo beauty. She wore a long, flowing white sundress that reached her calves, paired with crisp, brand-new black sneakers.

"How’s this?" Alice asked, spinning around. "Does this fit your 'normal' criteria?"

Anton fell back onto his chair, his heart doing a frantic little dance in his chest. She’s... she’s incredibly beautiful, he thought, his face heating up. "Y-yeah. Better. Much better. Let's go before I lose my mind."

As they stepped out of the apartment, Anton felt a strange sense of pride. He was a loner—the "Kyoto Boy" who spent his money on games and manga because he had nobody to spend it with. His family back in Kyoto were master kimono makers for the Imperial Court, a legacy stretching back three hundred years. He was wealthy, but he hid it. He hated the fake friends that money attracted.

But walking next to Alice, he felt different.

The Tokyo of this world was... sharper. The skyscrapers were taller, covered in transparent solar glass, and the air was filled with the quiet hum of electric drones.

Alice stopped near a digital kiosk. She tapped her wrist again, and a holographic screen flickered into life. Her eyes scanned the data, widening in shock.

DATE: JULY 21, 2036.

Ten years, she thought, a chill running down her spine. It’s been ten years since I jumped. The world had moved on. Daisuke was likely a memory, his children grown up. The guilt of her crime felt like a heavy stone in her stomach, but she quickly masked it.

"Is something wrong?" Anton asked, noticing her sudden stillness.

"Nothing," Alice lied, closing the hologram. "The layout of the city is the same, but the vibe... it’s different. Faster. Let's keep moving."

They walked toward Ginza, the heart of Tokyo’s luxury. The district was a dazzling labyrinth of high-end boutiques like Chanel and Dior, mixed with ultra-modern architecture. The streets were packed with tourists and businessmen, the air smelling of expensive perfume and roasted coffee.

Alice stopped abruptly in front of a restaurant: Makiyaki Ginza Onodera. It was an intimate, French-inspired spot with a warm, sophisticated glow.

Her breath hitched. She remembered this place. This was where Daisuke had taken her for their very first date. He had held her hand across the table and told her she was the most special thing in his life.

Bastard, she cursed silently. All of it was a lie.

"Do you want to eat here?" Anton asked, checking the menu. "I’ve never been, but it looks fancy."

Alice shook her head quickly, pulling away from the memory. "No. Not here. Besides, this place is too expensive for a high schooler, isn't it?"

Anton gave her a confident, lopsided smile. "Alice, I told you. My family is loaded. I just don't like showing it off because it attracts weirdos. If you want to eat here, the bill isn't an issue."

Alice looked at him, then at the restaurant. A wave of nausea hit her. "No. This place makes me sick. Let’s find somewhere else."

She grabbed Anton’s hand and started walking fast, almost skipping with a forced cheerfulness. Anton’s face turned bright red—it was the first time a girl had ever held his hand. Her palm was soft, but he could feel the incredible strength beneath the skin.

They settled for a mid-range steakhouse. Nothing too flashy, just good food.

But as the food arrived, Anton realized Alice wasn't a normal girl. She ate like a soldier on the front lines. Plate after plate of premium wagyu disappeared into her mouth.

"Uh... Alice? You okay there?" Anton asked, watching her finish her fourth steak.

"Android bodies require massive caloric intake to maintain the energy cells," Alice explained between bites. "Think of it like high-octane fuel. If I don't eat, my combat systems won't stay at one hundred percent."

As she ate, she began to explain his reality. "You are a descendant of the Hitsugaia line. You carry the 'Sacred Blood.' To the humans, you’re just a kid. To the Underworld, you’re a bridge. If they kill you and harvest your blood, they can dissolve the Veil—the energy wall that separates our worlds. If that happens, Tokyo becomes a slaughterhouse."

Anton leaned back, trying to process it. "It sounds like a bad movie, Alice. I’m just a guy who likes games. I don't feel 'sacred.' I think you’ve got the wrong guy. Maybe you’re just a confused girl who—"

Suddenly, the world went silent.

Anton looked around. The bustling restaurant was frozen. A waiter was tipped forward, a glass of water suspended in mid-air, the droplets hanging like diamonds. A man’s cigarette smoke was frozen in a grey swirl. Time had stopped.

BOOM!

The brick wall of the restaurant exploded. Dust and debris flew everywhere, but they moved in slow motion. Through the hole stepped a nightmare.

It was seven feet tall, with the body of a muscular man but the head of a demonic tiger. Its fur was matted with dried blood, and its claws were the size of kitchen knives.

"Sacred Blood..." the beast roared, its voice vibrating in Anton’s very bones. "Give it to me!"

Alice didn't hesitate. In a blur of motion, she kicked the table over to create a barricade, shoving Anton down. "Stay down! Don't move!"

Her white dress shimmered and dissolved, her battle armor snapping back into place in a flash of blue light. She reached for the air, and a katana hilt materialized in her hand. With a sharp Sring!, a long, gleaming blade of celestial steel slid out.

"I’m trying to enjoy my lunch, you overgrown housecat," Alice hissed. her eyes glowing with a faint, dangerous red. "You want his blood? You’ll have to go through my steel first."

The Hell-Tiger roared and lunged.

The fight was brutal. The demon moved with terrifying speed, its claws tearing through the floorboards, but Alice was faster. She parried a blow that would have crushed a car, the sparks from the metal-on-claw collision lighting up the frozen room.

She dived under the beast’s sweep, her katana slicing a deep gash into its thigh. Black, foul-smelling blood sprayed across the walls. The demon howled, swinging wildly. Alice took a hit to her shoulder—a deep scratch that tore through her armor—but she didn't even flinch.

"My turn," she whispered.

She leaped into the air, spinning like a cyclone. The demon tried to catch her, but Alice used the wall as a springboard, launching herself behind its neck. With one clean, violent arc of her blade, she decapitated the beast.

The tiger’s head bounced across the floor, its body collapsing into a heap of black ash that quickly evaporated into the air.

Alice landed gracefully, her breathing slightly heavy. She tapped her wrist, and her white dress returned instantly. The blood on her face vanished as if it had never been there.

Wosh.

Time snapped back to normal.

The waiter finished pouring the water. The man took a puff of his cigarette. Then, the screaming started. People looked at the shattered wall and the ruined tables in horror, but there was no monster to be seen—only the wreckage it left behind.

"Let's go," Alice said, grabbing Anton by the collar and dragging him out the back exit before the police could arrive.

They stood in a quiet alleyway a few blocks away. Anton’s heart was hammering against his ribs so hard he thought it might break.

"Now do you understand?" Alice asked, her voice calm as she looked at him.

Anton nodded slowly, his hands shaking. "I... I saw it. Time stopped. That thing... it was real." He looked at Alice, his eyes wide. "But why me? Why am I the one?"

Alice looked up at the towering skyscrapers of Ginza. "I don't have all the answers, Anton. I’m just the shield. But your family? The ones in Kyoto? They know. They’ve known since the day you were born."

She reached out and patted his cheek, a small, sad smile on her face. "Ask them. But for now, stay close to me. Because that tiger was just a scout. The real monsters haven't even started yet."

That afternoon, Anton lay flat on his back, staring at the popcorn texture of his apartment ceiling. In the background, he could hear the steady hum of the shower.

Alice was in there. She didn't actually need to bathe—her synthetic skin was self-cleaning and her internal systems didn't sweat—but she told him she liked the "sensory simulation." She wanted to feel normal, even if it was just an act.

Anton sat up and checked his watch. 5:00 PM.

If I catch the Nozomi Shinkansen, I can be in Kyoto in two hours, he thought. I could face my parents. I could demand the truth instead of waiting for another monster to jump through my wall.

The bathroom door clicked open. Alice stepped out, steam clinging to her skin. She was wrapped in nothing but a single white towel, her damp hair clinging to her shoulders.

"Whoa!" Anton yelled, shielding his eyes with both hands. "Alice! Manners! Use them!"

Alice let out a melodic laugh, the sound echoing in the small room. "Oh, Young Master, don't tell me you're shy? I'm an android, remember? This is just hardware."

She walked over and crouched in front of him, her eyes scanning his face. "I detect a spike in your emotional levels. Your heart rate is climbing. What’s the plan, Anton?"

Anton peeked through his fingers, his face burning. He quickly explained his plan to take the bullet train to Kyoto.

Alice tilted her head, a playful smirk dancing on her lips. "The train? Boring. It’s expensive, crowded, and the view is always the same. Why take a train when we can take a bike? I’ll drive, you hold on. We take the expressway. We can stop whenever we want. Isn't that better?"

"A bike?" Anton blinked. "Whose bike? I don’t even have a bicycle, let alone a motorcycle."

Alice stood up, and before Anton could protest, she let the towel drop. He squeezed his eyes shut again, but he couldn't help but peek—just a little. In a flash of blue light and pixelated energy, the towel vanished, replaced instantly by her white sundress.

"You saw me pull a katana out of thin air, didn't you?" Alice asked, her voice brimming with confidence. "I’m a high-end Android, Anton. My body is packed with nanites. If I’ve seen it and scanned it, I can project it into reality. Matter reconstruction is part of my 'Sacred Shield' kit."

She grabbed Anton’s hand, pulling him toward the door. "Now, put on your shoes. Let’s go to Kyoto."

Behind the apartment building, in a dark, secluded alleyway where the trash bins shielded them from view, Alice stood with her eyes closed.

"What now?" Anton asked, looking around nervously.

"Patience, Young Master. I don't want anyone seeing this. We don't need to go viral on TikTok today—that would just make us a beacon for the Underworld."

She tapped her wrist interface. A holographic blueprint flickered into the air, and suddenly, black particles began to swarm and solidify. Within seconds, a futuristic black sportbike stood before them. It was sleek, aggressive, and bore a counterfeit license plate. On the seat lay's two black leather jackets and two full-face helmets.

"Put these on," Alice commanded, tossing a jacket at him.

She mounted the bike, the digital display glowing to life with a soft hum. The engine roared—a smooth, predatory sound that vibrated through the pavement. Anton climbed onto the back seat, feeling awkward and stiff.

"You want to fall off, dummy?" Alice shouted over the engine's growl. "Wrap your arms around me. Tight."

Anton hesitated, then gingerly placed his hands on her waist.

"Tighter!" Alice teased. "I'm about to break the sound barrier!"

She kicked the bike into gear and vroom—the front wheel lifted off the ground for a split second before they blasted out of Ginza and onto the expressway. Anton let out a wild, high-pitched laugh as the speedometer climbed: 180... 220... 250 km/h. Tokyo’s lights became a blur of neon streaks. For the first time in his life, Anton felt like he was flying.

"Faster, Alice! Go faster!" he yelled like a little kid.

Alice laughed, the sound piped through his helmet’s intercom. "Careful what you wish for, kiddo!"

An hour into the ride, the adrenaline started to fade, replaced by a very human problem.

"Alice! I... I have to pee!" Anton shouted.

"Seriously?" Alice teased. "We’re making such good time! Can't you hold it with your 'Sacred Willpower'?"

"No! My bladder doesn't care about destiny! Stop the bike!"

Alice sighed. "Fine. There’s an exit ahead. We’ll find a Seven-Eleven."

They pulled off the highway and found a lonely convenience store sitting on the edge of a darkened rural road. It was 7:00 PM, and the place was deserted, save for the hum of the refrigerated aisles.

Alice parked the bike. "Go on then. Don't be long. And get me four cans of something cold when you’re done. I’m thirsty."

"You got it," Anton said, hopping off the bike and sprinting toward the restroom located on the side of the building.

The bathroom was quiet—unnervingly so. Anton picked the furthest urinal, wanting some peace. But just as he started, the faucet to his right turned on by itself. Then it stopped.

The air grew cold. The humming of the fluorescent lights ceased. Time stood still.

Oh no... not again, Anton thought, his stomach dropping.

The door of the stall behind him shattered into two jagged pieces. Anton fumbled with his zipper, his heart hammering against his ribs. He tried to scream, but his voice felt like it was trapped in a box. His legs turned to jelly, and he collapsed onto the floor.

Standing in the doorway was a nightmare in a woman’s shape. She had unnaturally long, matted black hair that moved like snakes. In her hand, she gripped a massive, rusted scythe dripping with fresh blood. Her tongue rolled out of her mouth, slithering across the floor toward Anton’s feet.

"Sacred Blood..." she hissed, her voice sounding like wet gravel. "Come to me..."

"Alice!" Anton tried to yell, but it came out as a pathetic whimper.

CRASH!

The bathroom wall exploded as Alice kicked her way through, already in her combat armor. Her katana was drawn, the blade glowing with a deadly blue light.

"You’re a particularly ugly one, aren't you?" Alice said, her eyes narrowing.

The demon shrieked. Her hair erupted, splitting into dozens of sharp, spear-like appendages that lunged at Alice. Alice moved like a dancer in a cage, her blade a blur as she sliced through the hair-spears one by one.

The space was too small. Alice grabbed the demon’s throat and threw her through the exterior wall, sending both of them tumbling into the empty parking lot.

The demon swung her scythe, a massive arc of red energy tearing through the asphalt. Alice dodged, her armor sparking as a hair-tendril grazed her side. She didn't slow down. Her nanites began repairing the wound instantly as she charged.

"Lullaby... of Rage!" Alice whispered.

She spun, her sword catching the moonlight. The demon tried to shield herself with her hair, but Alice’s blade cut through it like a hot knife through butter. With a final, brutal lunge, Alice took the demon’s head.

The body collapsed, and like the tiger before it, the remains dissolved into black mist.

Time snapped back. The crickets began to chirp again.

Alice walked back into the bathroom, looking perfectly normal in her white dress again, though her eyes still carried a trace of the battle's heat. She found Anton still sitting on the floor, trembling.

"Hey. Grab your drinks and let's go, Ton," she said, offering a hand.

They walked into the store. Alice looked at him, then looked down. Anton was holding a pair of new pants he’d grabbed from the 'salaryman emergency' shelf.

"Why the new pants?" Alice asked, a mischievous glint in her eyes.

Anton looked away, pointing at the dark stain on the front of his jeans. He hadn't managed to finish his 'business' before the demon attacked. He had, quite literally, wet himself.

Alice burst out laughing. "Hahaha! Oh my god, you really are a baby! You got so scared you couldn't even finish?"

"I wasn't scared!" Anton defended himself, his face turning a shade of purple. "I was in the middle of it! It’s a biological reaction to a surprise scythe-lady!"

"Sure, sure," Alice teased, poking his shoulder as they headed back to the bike.

For the next two hours of the ride, Alice didn't let him live it down. She teased him over the intercom, calling him 'Little Piss-Knight.'

Despite the embarrassment, Anton didn't let go of her. He held on tight, his face pressed against her back. Amidst the terrifying world of demons and destiny, the warmth of Alice’s synthetic body felt like the only safe place left in the world. As the signs for Kyoto began to appear, he closed his eyes, grateful for his loud, teasing, and deadly bodyguard.