The moment Kaori Mamiya stepped out of the government building, winter air knifed into the space beneath her collar. It wasn’t just cold. It was the kind of dry, rinsed cold that made the city smell like metal and distant exhaust, like concrete that had never truly warmed. The sky above the tall facade was a dull, pale slab.

  People moved along the sidewalk with their shoulders tucked, heads down, hands buried in coats—Tokyo pretending it was ordinary. Mamiya exhaled, and her breath came out white and thin. That meeting ended, but nothing ended.

  A black sedan rolled up to the curb with the quiet inevitability of something that had been waiting before she even stood. The rear window slid down.

  “Professor Mamiya,” a young JSDF officer said, his expression stiff enough to crack. “May we give you a ride?”

  Mamiya blinked once, measuring the tone, the posture, the way the driver’s eyes stayed forward. No hostility. No overt threat. Just… containment dressed as courtesy.

  “Well,” she said, smoothing her voice into polite calm, “if you insist.”

  The door opened. Leather, clean and faintly chemical, greeted her as she slipped into the back seat. The car swallowed outside noise the way thick curtains swallowed daylight. When the door shut, Tokyo became a muffled rumor beyond tinted glass.

  The sedan pulled away from the curb and merged into traffic with practiced ease. The city slid past: pedestrians like moving punctuation, vending machines glowing too brightly in the gray, overhead wires stitching the sky.

  For a few seconds, no one spoke.

  Mamiya watched her reflection hover over the window—glasses, neat hair, a face that looked composed because it had learned the habit. Beneath that composure, her pulse kept trying to climb her throat.

  The young officer shifted in his seat, then reached into a bag beside him. He brought out a thick file, its edges squared, its cover stamped in block letters.

  [CLASSIFIED.]

  “It isn’t much,” The young officer said, and his formality wavered under something like guilt, “but… please take a look.”

  Mamiya’s fingers met the file’s rough paper. It was heavier than it should have been, as if weight could be used as an argument. She opened the first page.

  “…This is about Yu Shiro.” The young officer said.

  Mamiya breath caught so hard it stung. The young officer voice came out quieter than she intended. The name on the paper looked unreal in this context—like seeing a familiar face printed on a wanted poster.

  “We investigated the Returner,” The young officer said, and swallowed, “and you as well. We believe we’ve reached a truth no one else has regarding the Missing Star.” He didn’t look at her. He stared straight ahead as if the windshield had become his shield.

  Mamiya’s mouth went dry. The sedan’s steady motion suddenly felt like being carried by a current that didn’t care what she wanted. So they found him. Of course they did.

  “What do you intend to do with him…?” Mamiya asked. Her attempt at calm tasted brittle.

  “It’s classified,” The young officer said. “But if he ever uses his… ability in public again, we may be ordered to—remove the threat.” He hesitated. His eyes darted to the side—toward the older officer in the passenger seat—then back to the road beyond the driver. His hands tightened once on his knees.

  The words hit the interior of the car and didn’t echo, because the car absorbed everything. That made them worse. They sat in the air like a knife left on a table.

  Mamiya’s fingertips pressed into the paper until the edge bit her skin. She forced her breathing to remain steady. She forced her face not to change. Remove the threat. As if he were a missile. As if he were not a boy.

  “Argh!” the young officer blurted. “Senpaaai! I can’t keep a straight face saying this stuff!” his shoulders jerked. His expression twisted as if he’d just bitten down on something sour.

  The abrupt crack in tone was so human it almost made Mamiya laugh—and then almost made her cry.

  The older officer in the passenger seat whipped around so fast his seatbelt strained.

  “Idiot!” he snapped. “At least finish the briefing with dignity!”

  The younger man shrank, cheeks flushing, palms up in helpless surrender.

  “I’m sorry! It’s just—this is like some manga plot! Satellite theft! Secret magic boy! ‘Remove the threat!’ Like I’m supposed to say it with a straight face—”

  “Shut up,” the older officer hissed, then inhaled, visibly forcing himself back into control. He turned forward again, and when he spoke next, his voice was quieter. Not softer—quieter. The kind of quiet that carried weight. “Professor Mamiya,” he said, “this file will never be released. It stays in the dark.”

  Mamiya’s throat tightened. She didn’t trust herself to speak.

  “Yes,” the older officer continued, “he hijacked a satellite. But the method is so absurd, so unprovable, that no prosecutor could touch him without exposing magic to the world.” He glanced sideways through the windshield at passing buildings, as if the city itself were an audience that must never be allowed to learn the script. “We aren’t eager to light that fuse.”

  The younger officer leaned forward slightly, as if he couldn’t hold it in anymore.

  “And he protected someone,” he said, fast and fervent. “He saved a girl without caring about the risk to himself. That’s… that’s hero stuff.”

  The word hero hung there—too bright for the dim interior.

  The older officer didn’t scoff. He didn’t smile either. He simply nodded once.

  “The Self-Defense Forces protect by existing,” he said. “We deter, we stand, we keep the boundary intact so others can sleep.” His gaze stayed forward, but his voice carried something Mamiya hadn’t expected to hear in a classified conversation: respect. “He protected by acting,” the officer said. “That makes him one of our citizens worth guarding.”

  Mamiya’s grip on the file loosened by a fraction. Her chest felt tight, then suddenly too open, as if something heavy had shifted off her ribs.

  “We will safeguard him from the shadows,” the older officer continued. “We will not allow him to become a political pawn for foreign nations. Not if we can help it.”

  The younger officer nodded so hard his cap nearly slipped.

  “We’ll keep eyes on the situation,” he said, eager now, “but we’re not here to drag him into a lab. We’re not here to break him. We’re—”

  “Enough,” the older officer cut in, but his tone wasn’t cruel. It was protective, like an arm placed between a reckless junior and a dangerous edge.

  Mamiya stared down at the file. The printed words blurred for a moment.

  A single tear slipped from the corner of her eye before she could stop it. It traced a hot line down her cheek, absurdly warm against winter air that still clung to her skin.

  “…Thank you,” Mamiya managed. “Truly.”

  The sedan slowed, then came to a stop near the station. Outside, commuters surged like a tide—faces bright in phone light, footsteps relentless.

  “Think nothing of it,” the older officer said. “It’s our duty.”

  The two officers gave a crisp salute in the cramped space. It looked almost comical, except their eyes didn’t carry humor. Mamiya bowed back, small and precise.

  The door opened. Cold air rushed in like a slap. Mamiya stepped out and the sedan glided away, black paint swallowing reflections. It turned the corner and vanished as if it had never existed. Mamiya stood there a moment longer than she needed to. Stay alive, Yu, she thought, watching the flow of people. Please. For all of us.

  ?

  It was a day off. Yu stood in his dim room and watched morning sunlight leak through the edge of his curtains like a guilty secret.

  The light painted a thin golden line across the floorboards, catching dust motes that drifted lazily in the still air. The rest of the room remained shadowed—textbooks stacked like small fortresses, a desk cluttered with tissues, some stained dark red, the faint copper smell lingering no matter how many times he told himself he’d cleaned properly.

  The silence wasn’t peaceful. It was tense, as if the room itself was holding its breath. Yu flexed his fingers and stared at his palm. Today. His heart wouldn’t settle. It kept trying to sprint ahead, tripping over nerves.

  He had been preparing for this since few days—no, since the moment he’d felt her arms around him and realized how terrifying it was to want someone that badly. Since the moment he’d tasted how easy it was to lose control.

  “…Today,” he whispered, and his voice sounded too loud in his own room. “I can do it today.”

  The air felt different lately. Heavy, as if humidity had moved in without permission. Sometimes the desk lamp’s light bent strangely at the edges, and sometimes he swore he could hear a faint electrical hiss—like static, like ozone—when he concentrated too hard. Mana didn’t belong here. That was the problem.

  Yu swallowed, then reached for the sensation he’d come to recognize—warm, fluid, like a current beneath skin. The inherited pull of [Bind.] Not a spell he’d studied. A connection that had been forced into his hands. He focused, and the room responded.

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  At first it was subtle: the air tightened, like a film stretched taut. The hairs on his arms rose. The thin golden line of sunlight on the floor shivered as if a breeze had slipped under the curtains.

  Then the mana in the room—barely visible, barely real—answered him. Blue-white sparks bloomed in the air in tiny, trembling points. They weren’t light exactly. They were more like the idea of light, the outline of something pressing through a surface that wasn’t meant to be pressed.

  Yu exhaled slowly, counting the breath the way he’d once counted steps for drills. Control. Rhythm. Don’t panic. Please… hold together. He reached out with his hand and imagined a frame. A rectangle. A boundary. A stable shape.

  The particles gathered as if magnetized. They traced straight lines, corner to corner, until a pale square of light hovered against the wall—an outline that reminded him of a stream frame, the way the EWS interface had once floated in front of him like a window into madness.

  Only this time, the frame wasn’t on a screen. It was in his room. A faint breeze drifted through the glowing outline, carrying with it a scent that didn’t belong: dry stone, cold water, and something like sun-warmed grass.

  “…Stay,” Yu whispered. “Stay open.” His throat tightened.

  The edges of the frame flickered once, like a glitch. For a heartbeat, the rectangle warped and threatened to collapse. Yu clenched his jaw. Pain pricked behind his eyes—not enough to split his skull, but enough to warn him. He held it anyway.

  The portal stabilized. Yu’s hands shook. His legs felt unreal, light and heavy at the same time. Rize. He stepped forward and let the light swallow him.

  ?

  There is Isekai. Cool morning air filled his lungs. The sensation of crossing was wrong every time—like falling without moving, like someone had cut a hole in the world and he had dared to crawl through it. For a split second his stomach lurched as if gravity had forgotten him, and then his boots found stone.

  Yu stood outside an inn, the building’s wooden beams dark with age and weather. The street smelled of baked bread, faint smoke, and damp cobblestones. Somewhere nearby, someone was already shouting prices in the market, life unfiltered by walls.

  The door creaked open. Rize stepped out. Sunlight washed over her hair, turning it into a soft flame for an instant. She froze, like her body had decided it didn’t trust what her eyes were seeing.

  “Yu!?” Her voice pitched up, disbelief cracking into joy. “You came!?”

  Yu’s chest burned. He smiled, awkward and too relieved to pretend otherwise.

  “Morning, Rize,” he said. “Going to the Guild?”

  “Of course, but—” RIze stopped herself, as if she was afraid the word but might cancel reality. Her hand hovered near her sword belt out of habit, then dropped. “How…?”

  Yu took a breath and forced himself not to flinch away from her gaze.

  “If you don’t mind,” he said, and his voice came out steadier than he felt, “stay with me today. There’s somewhere I want to take you.”

  “Yu…?” Rize’s breath caught. Color rose slowly in her cheeks, a blush that looked impossibly honest. For a moment, she was silent—and in that silence, Yu could hear his own heartbeat, loud as boots on stone.

  Then Rize nodded.

  “…Take me,” she said, voice small but certain. “Anywhere.”

  Yu offered his hand. Rize took it without hesitation. He focused on the warmth in his palm, the pull of [Bind], and the world answered.They like a Transfer.

  ?

  Japan hit her like a wave. Station noise wasn’t a single sound—it was layers: footsteps slapping tile, announcements chattering through speakers, train brakes screeching, electronic beeps, distant music, and the constant rustle of fabric and bags. Bright advertisements flashed in colors too sharp, too clean. The ceiling stretched high, lit with a sterile white that made everything feel slightly unreal.

  Rize clung to Yu’s sleeve as if the crowd might physically tear her away.

  “Yu!?” Her eyes darted everywhere, wide and alarmed. “What do I do with this flat talisman!?” She held the IC card—Suica—between two fingers like it might bite. The plastic looked too ordinary in her hand, and that made the contrast cruel.

  Yu chuckled despite himself and guided her wrist gently.

  “Just tap it here,” he said. “See? The glowing place. It opens the barrier.”

  Rize swallowed, then pressed the card to the gate.

  Beep. The gate opened.

  “I—I passed!?” Rize’s face lit up like she’d just survived a trap room. The triumph was so pure it hurt Yu’s chest. A train roared into the platform with a rush of wind that smelled like dust and iron. Rize jumped back instantly, her hand flying to her hip—then freezing when she remembered she wasn’t carrying her sword here. “Yu!?” she hissed. “A long metal beast! It’s attacking!”

  “It’s a train,” Yu said quickly, smiling to keep her from spiraling. “It carries people inside its belly. It’s safe.”

  “That’s worse,” Rize whispered, scandalized, but she let Yu guide her forward anyway.

  The doors slid open. People poured out, then flowed in. Yu stepped inside first, then held out his hand again. Rize took it, fingers cold. The doors closed, sealing them in with a soft pneumatic sigh, and the train began to move. The platform slid away. The world outside the window started running.

  Rize pressed her face close to the glass, breath fogging a small circle.

  “…The world is running,” she whispered, awe-struck.

  Yu laughed under his breath, and the sound felt lighter than it had in days.

  ?

  They surfaced into a bustling shopping district, where the air smelled of fried food, perfume, and damp winter coats. Signs crowded the sky. People moved with purpose, and the sheer density of bodies made Rize stiffen like she’d walked into enemy territory.

  “Yu,” she said, voice tight, “are you sure this is safe? It feels like a battlefield. So many people.”

  “It’s just downtown,” Yu said, trying to sound casual. “Nobody is fighting.”

  Rize didn’t look convinced. Her grip on his sleeve tightened.

  “Let’s go in there first.” Yu pointed at a glowing building spilling electronic noise onto the street.

  The automatic doors opened. Noise slammed into them like a physical force—pew-pew bursts, synthetic cheers, drum beats, explosions. Bright screens flickered in every direction, painting faces in neon blues and reds.

  “Yu!?” Rize yelped, eyes widening. “Monsters!? A den of monsters!”

  “It’s an arcade,” Yu said quickly. “People just play here.”

  Rize hovered behind him, shoulders tense, eyes tracking every screen as if expecting something to leap out. The light reflected in her gaze, making her look like she was standing in front of a portal into chaos.

  Yu led her to a crane game, where plush toys lay in a heap like soft treasure.

  “You move this arm to catch something,” he said. “Like magic, but mechanical.”

  “Hmph,” Rize said, squaring her shoulders. “Watch me.” She grabbed the joystick with the seriousness of drawing a sword. Her tongue peeked out slightly in concentration. The claw moved, paused, dropped—And missed by a mile. Rize stared. “Wh—why!?” she demanded. “I hit it! This machine has evasion skills!”

  Yu bit his lip to keep from laughing too loudly.

  “Technique matters,” he said, then inserted a coin and took his turn. He adjusted the claw’s angle, waited for the timing, and released. The claw descended, grabbed, and after a tense second, a plush toy tumbled into the prize chute.

  Rize gasped as if she’d watched a miracle.

  “We did it!” she said, clutching the toy with both hands. “This is the loot!? Our loot!?”

  Yu’s chest tightened painfully. Her delight hit him like a blade—not hurting, but cutting through everything else.

  ?

  They tried a rhythm game next.

  “This is impossible!” Rize shouted over the music, slapping buttons with increasing panic. “Even a [Haste] spell wouldn’t help! The notes are too fast!”

  Yu laughed, helpless. He tried too and fumbled, the machine scolding him with a bright “MISS” that felt unfairly loud.

  “Let’s try something easier,” Yu said, still smiling.

  They wandered deeper into the arcade until Rize paused in front of a strange booth, its curtains closed like a tiny stage.

  “Yu,” Rize said, voice wary, “what is this? A magic circle people can enter?”

  “It’s for taking pictures,” Yu said. “Together. A photo booth.”

  Rize blinked. Then her expression softened into cautious curiosity. They stepped inside. The space was cramped, smelling faintly of plastic and disinfectant. The screen lit up with instructions and a countdown. Flash. Rize flinched hard. Flash.

  She blushed, then tried to pose stiffly, like she was being examined by a spell. Yu leaned in, grinning, and Rize’s eyes flicked to him. Her shoulders loosened a fraction. Flash. This time she smiled. When the strip of photos printed out, warm from the machine, Rize held it as if it were a sacred relic.

  “This… is us…?” Rize whispered.

  “Yeah,” Yu said softly. “Proof we were here.”

  Rize’s fingers traced the tiny images, her expression reverent. Yu couldn’t speak. She was too precious.

  ?

  They went to a clothing shop next. Bright lights washed over racks of fabric. The air smelled of new clothes—clean cotton, synthetic fibers, and perfume. Rize touched everything with open fascination, rubbing fabric between her fingers like she was testing mana density.

  “Look!” Rize said, lifting a sleeve. “This is so thin! So soft!”

  “Try it on,” Yu said.

  Rize blinked. Then her cheeks warmed again, and she disappeared into a fitting room with an armful of clothes. Each time the curtain slid open, Yu’s heartbeat tried to escape his chest. A sweater that made her look like she belonged. A skirt that made her move cautiously like she was learning a new body. A coat that made her seem suddenly older, like she was stepping into a life she hadn’t expected to exist.

  Then she reached for a white dress. It was simple, clean, and painfully familiar—too close to the style Claval had chosen, too close to the memory of silver hair under fluorescent lights. Rize stepped out wearing it, hands clasped in front of her as if she didn’t know what to do with the feeling.

  “Yu,” Rize said quietly, eyes shining, “you’re so thoughtful. I never imagined I would wear something like this.”

  Guilt prickled Yu’s stomach like needles. I didn’t choose it first. But he couldn’t say that. Not now. Not with her looking at him like he had handed her a future.

  “It looks great on you,” Yu said, voice hoarse.

  Rize smiled, and for a moment, the store noise faded.

  ?

  Evening fell, and Tokyo’s lights woke up. Street lamps painted the sidewalks in warm pools. Storefronts glowed. The air turned sharper, cold biting at fingertips. Rize carried a small bag with clothes and prizes, walking beside Yu with a quiet smile that made her look like the world was still unfolding in front of her.

  “Yu,” Rize said softly, “your world is so bright.”

  “Maybe,” Yu said. “I never thought about it until you came.”

  Silence settled between them—not awkward, but warm. The kind of warmth that made Yu’s chest ache, because it felt like something he didn’t deserve. He brought Rize to his home. The streets narrowed. The noise softened. Familiar shadows gathered under familiar eaves.

  Yu reached for his home door.

  “I’m home,” he said automatically, more habit than meaning— And then the door opened from the inside.

  “Good evening, Yu ?” Claval stepped into view wearing an apron, as if she had always belonged there. The warm scent of cooking drifted out behind her. She smiled with practiced sweetness, silver hair catching the hallway light.

  Rize froze in the entryway. Her expression sharpened instantly. Anger rose so fast it felt physical, like mana sparking in the air.

  “Claval!?” Rize snapped. “Why are you here!”

  Yu’s heart dropped. He grabbed Rize’s shoulder immediately.

  “Rize!” he hissed, low and urgent. “Calm down. My mom is here.”

  Rize’s breath hitched. Then, as if a switch flipped inside her, she forced the aura down. The anger didn’t vanish—it compressed, tightened, became a blade she kept sheathed. Claval’s smile didn’t move, but her eyes gleamed with interest.

  “…Oh?” Claval said lightly. “And you brought Rize home. How wonderful.”

  Rize’s gaze stayed locked on her, sharp but unreadable.

  “Claval,” Rize said, and her voice came out too polite to be safe, “shall we talk? The three of us.”

  Claval tilted her head, sweetness intact.

  “Of course,” she said. “There’s a family restaurant on the main street, right, Yu? Let’s go there.”

  Rize smiled. Claval smiled. Neither smile reached their eyes. Cold sweat crept down Yu’s spine. My wonderful day is over. Because he could already feel it—two storms facing each other, waiting for him to become the ground they fought on. And what awaited him now wasn’t a date, or a reunion, or anything gentle.

  It was Hell’s tea party.