Chapter Text
The sky over Neo-Gotham did not bleed; it shattered.
At thirty-five, Damian Wayne carried the mantle of the Bat not as a mere legacy, but as an armor forged from absolute control. He had mastered his father’s darkness, tempered his mother’s lethality, and built a life he had once thought impossible for a creature born in a League of Assassins incubator. He was Batman. He was a husband. He was a father.
And right now, he was failing.
"Robin, fall back! That is a direct order!"
Damian’s voice roared through the comms-link, stripped of its usual tactical chill. On the high-altitude observation deck of the Wayne Enterprises Tomorrow Tower, the air was humming with a sickening, violet luminescence. The structural glass surrounding the pavilion groaned under the weight of an artificial gravitational field that was expanding exponentially by the second.
At the center of the platform stood Chronos-Prime—a radicalized temporal terrorist wielding a localized singularity engine stolen from a black-budget S.T.A.R. Labs vault. The machine looked like a gyroscope designed by a madman, its interlocking titanium-alloy rings spinning so fast they blurred into a solid sphere of displaced space-time. Strands of erratic, violet lightning arced from the core, snapping against the concrete and vaporizing the heavy reinforcement pillars.
"I can reach the manual override, Dad! If he trips the secondary coil, the whole sector goes into a temporal loop!"
Martha—thirteen years old, fierce, brilliant, and current bearer of the Robin insignia—didn’t look back. She had her mother’s stubborn, indomitable spirit and her father’s lethal precision. Her tactical suit was a marvel of dual-universe engineering: heavy-weave Kevlar and WayneTech micro-plating, overlaid with stylized crimson and black accents that paid homage to both the Bat and the Ladybug. A sleek, utility-belt-integrated grapple launcher hummed in her right hand as she vaulted over a collapsed steel girder, her heavy-tread boots clearing the debris with inches to spare.
"Robin, no!"
Through the shattered panoramic windows of the tower, three more figures were being held back by a wall of hardened digital foam deployed by the Batcave's automated defense protocols.
"Martha! Mar-Mar!" nine-year-old Thomas screamed, his small fists slamming futilely against the translucent blue barrier held back by his grandfather the original batman who watched to feeds with a grim expression on his face. His twin brother, Alfred—named for the great man whose memory hung over the family like a permanent blessing—was dead silent, his pale green eyes wide with a terrifyingly adult comprehension of the physics unfolding before them. Clutched tightly between them, her tiny hands gripping Thomas’s tunic, was five-year-old Diana. Her dark, blue-black pigtails shook as she sobbed, burying her face into her brother's side to shut out the blinding light.
Dick, Kory and Mar'i were in tamaran due to an emergency. Red hood, Arsenal and Speedy(Lian) were currently in Star City because of a high tech illegal weapons ring. Cass and Steph were in hong kong, Ladybug, Superman(Jon Kent), Supernova(Conner Drake Kent) and Red Robin were on an intergalactic mission which had left only the current Batman and Robin when the villain attacked with Bruce(Agent B) manning the comms since Barbara was on vacation.
"Thomas, keep Diana down!" Alfred yelled, his voice cracking with youth but sharp with tactical awareness. "Dad, the energy signature is spiking past the Planck threshold! It's not a localized loop—it's an anchor collapse!"
Damian fired his grapple, his heavy cape snapping behind him like a localized thunderstorm as he hurled himself across the chasm of the ruined laboratory. He had survived Darkseid. He had survived his grandfather’s madness. He had survived the brutal conditioning of his childhood. But as he watched the violet lightning arc from the singularity engine toward his eldest daughter, a primal, icy terror seized his chest.
"I've got the core, Batman!" Martha shouted, her boots skidding across the metallic floor. She lunged forward, her collapsible bo-staff extended to its maximum length, aiming to jam the primary turbine and stall the engine's rotation.
Chronos-Prime laughed—a hollow, desperate sound muffled by his chronal-containment suit. "You're too late, little bird! The future belongs to the unwritten! Let the past consume you!"
With a horrific crack that sounded like the universe tearing at its seams, the singularity engine didn't explode—it imploded. It pulled the light, the air, and the very gravity of the room into a single, microscopic point of infinite density.
Then, it lashed out.
A whip-like tendril of violet energy snapped across the platform. It didn't strike Martha's physical body; it struck her presence. It wrapped around her form, dragging her toward the collapsing micro-singularity.
Damian reached the platform just as the light flared into a blinding, silent supernova. He threw his hand out, his reinforced gauntlet missing Martha’s outstretched fingers by a fraction of a millimeter.
"MARTHA!"
The scream that tore from Damian’s throat was not that of the Batman. It was the raw, broken howl of a father watching his child vanish into nothingness.
The violet light flared, expanded into an iridescent sphere that swallowed Martha whole, and then, with a sound like a vacuum sealing, it snapped shut. Where his thirteen-year-old daughter had stood a millisecond before, there was only a scorched, smoking circle on the titanium floor.
The singularity engine sputtered and died, its rings clattering to the ground in useless, molten heaps. Chronos-Prime collapsed, unconscious or dead from the feedback, but Damian didn't look at him.
Batman fell to his knees. His gauntlets scraped against the hot metal where his daughter’s boots had been just moments ago. The cowl hid his eyes, but the trembling of his shoulders was unmistakable.
"Dad..." Thomas’s voice was small, terrified, breaking through the comms as the digital foam barrier dissolved.
Damian didn't move. For the first time in his life, the grand tactician of the Justice League had no plan, no countermeasure, and no strategy. His daughter was gone, swallowed by the infinite abyss of time itself.
Paris. Ten years in the past.
The afternoon air over the Place des Vosges was crisp, smelling of rain and roasted chestnuts from a nearby street cart. It was an ordinary Tuesday for the citizens of Paris, which meant it was an extraordinarily stressful Tuesday for its resident superheroes.
"Watch the tail, Ladybug!"
Chat Noir vaulted over a stone chimney stack, his staff extending to block a barrage of hardened, razor-sharp paper airplanes. The villain of the day was Le Bureaucrate, a disgruntled city zoning official who had been akumatized after his morning coffee was cold and his permits were denied. He was currently hovering over the park on a giant, floating clipboard, throwing bureaucratic red tape that could bind steel.
"I see him, Chat!"
Ladybug—seventeen years old—swung through the air, her yoyo humming like an angry hornet. Her mind was split between calculating the trajectory of the villain's next attack and worrying about her schoolwork. She was exhausted. The burden of being Paris's protector, combined with the relentless pace of Hawkmoth’s attacks, was wearing her down to the bone.
"Let's wrap this up! Lucky Charm!" she called out, tossing her yoyo into the air.
A flash of pink light and magic deposited a strange object into her hands: a heavy-duty, industrial-grade roll of double-sided mounting tape.
"Tape?" Chat Noir landed with a nimble bounce beside her on the roof of a classic Parisian apartment building. He leaned on his staff, flashing his trademark grin despite the soot smudge on his cheek. "What’s the plan, My Lady? Are we going to mail him back to the office?"
"Not quite," Ladybug murmured, her eyes scanning the environment, looking for the telltale red-and-black polka dot patterns that highlighted her solution. "If we can anchor his clipboard to the—"
She stopped.
The sky above the center of the park didn't just change; it groaned.
A sound like tearing canvas echoed across the sky, drowning out the shouting of Le Bureaucrate. The air twenty feet above the fountain in the Place des Vosges rippled, turning a deep, violent shade of amethyst. The clouds swirled into a localized vortex, and a shockwave of displaced atmospheric pressure knocked both heroes back a half-step.
"What the—is that a new akuma power?" Chat Noir asked, his feline ears pinning flat against his head as his staff slid back into his hands.
"No," Ladybug whispered, her instincts screaming that this wasn't magical magic—this felt cold, mechanical, and fundamentally wrong. "That’s not an akuma."
The violet vortex flared with a sudden, blinding brilliance. With a sharp pop, the air expelled a solid object.
It wasn't a projectile. It was a person.
The figure fell from the sky like a stone, tumbling through the air with practiced, desperate grace. Even in mid-fall, the individual managed to twist their body, attempting to fire a sleek, metallic device attached to their wrist toward a nearby oak tree. A thin, black wire shot out, wrapped around a thick branch, and snapped taut.
The branch groaned under the sudden, violent weight. The wire held, but the momentum swung the figure sideways, sending them crashing through the thick canopy of leaves before the line detached, sending them rolling hard across the cobblestones right toward the base of the roof Ladybug and Chat Noir were standing on.
Le Bureaucrate, thoroughly confused by the sudden interruption to his monologue, hovered lower. "Hey! Who authorized this interruption? I have the permits for this sector!"
Ladybug didn't hesitate. "Chat, secure the akuma! I'm checking on the civilian!"
She dropped from the roof, her yoyo catching a lamppost to soften her descent. She landed gracefully on the cobblestones, her eyes instantly locked on the crumpled figure struggling to stand.
It wasn't an ordinary civilian. Or at least, no civilian Ladybug had ever seen.
The girl was young—maybe twelve or thirteen—but she was dressed in a highly advanced, tactical uniform that looked like it belonged to a high-tech military division or a specialized strike team. The base was a dark, matte-black armor weave, overlaid with a reinforced crimson chest piece that bore a stylized, angular black bird symbol. A utility belt of heavy, matte-gray compartments hugged her waist, and a scalloped cape, black on the outside and dark green on the inside, torn and singed at the edges, dragged on the stone.
Most striking of all was her face. She wore a sleek, black domino mask that adhered perfectly to her skin, obscuring her eyes, but her sharp, aristocratic jawline and dark, ink-black hair—tied back in a swift, practical ponytail—were visible.
The girl gasped, coughing as she pushed herself up with forearms covered in heavy gauntlets featuring three wicked, backward-facing blades.
"Ugh... the atmospheric density is off... the gravity coefficient..." the girl muttered, her voice sharp, precise, and completely devoid of the panic one would expect from someone who had just fallen out of a hole in the sky. She shook her head, her hand instantly dropping to her utility belt in a movement so fast it was a blur. "Batman? Agent B? Report."
Only static answered her from a cracked piece of tech in her ear.
"Hey! Are you okay?" Ladybug took a step forward, her hands raised in a non-threatening gesture. "That was a really nasty fall. Don't move, you might have a concussion."
The girl froze. Her head snapped up.
Through the white lenses of her domino mask, she stared at Ladybug. Her posture instantly changed from a dazed crash-victim to a coiled spring, ready to strike. Her weight shifted to the balls of her feet, her hands hovering over her belt with lethal intent.
But then, she stopped.
The sharp, defensive line of her shoulders suddenly collapsed. Her jaw dropped slightly. She looked at Ladybug’s red-and-black polka-dotted suit, then at the youthful, unlined face of the teenage hero, and finally at the blue-black hair tied in two familiar pigtails.
The girl’s voice lost all its tactical ice, suddenly sounding very young, very tired, and completely overwhelmed.
"Maman?"
Ladybug froze. Her brain, already overloaded by the akuma fight and her impending school deadlines, stalled entirely.
"What?" Ladybug blinked, pointing a finger at her own chest. "Maman? No, no, you have the wrong person. I’m Ladybug. I’m... I'm definitely not anyone's mom.!"
Before the girl could answer, a shadow fell over them. Le Bureaucrate had finally decided that he had been ignored for long enough.
"Filing a complaint for unauthorized intervention!" the villain roared, raising his giant fountain pen to launch a stream of hardened ink-blots at them.
The girl in the Robin suit didn't even look up at him. With an efficiency that was terrifying to behold, her right hand moved like lightning. She unclipped a small, crescent-shaped piece of metal from her belt—a bird-shaped projectile with razor-sharp edges—and flicked her wrist.
The projectile whistled through the air, slicing clean through the tip of the villain's fountain pen, severing the mechanism before embedding itself deeply into the wooden frame of his floating clipboard.
"Silence, civilian," the girl snapped, her tone dripping with an aristocratic authority that made Ladybug’s jaw drop. "I am speaking."
"Whoa!" Chat Noir landed beside them, his eyes wide as he looked from the severed pen to the teenage girl in the high-tech armor. "Nice throw, kid! But 'civilian' is a bit harsh, don't you think? He’s an akuma."
The girl’s head snapped toward Chat Noir. Her mask-covered eyes narrowed as she scanned his leather suit, his bell, and his staff. "A feline-themed costume with no apparent ballistic lining or structural reinforcing? And your weapon is a collapsible quarterstaff with no pneumatic enhancement? What kind of low-rent rogue gallery did I just drop into?"
"Hey!" Chat Noir looked offended, pressing a hand to his chest. "My suit is indestructible magic, thank you very much! And I am a hero, not a rogue!"
"Enough!" Ladybug intercepted, standing between the stranger and Chat Noir as Le Bureaucrate began to wail about destruction of government property. "Chat, we need to finish this fight right now. Kid—whoever you are—stay here. Do not throw any more sharp objects!"
"I do not take orders from—" The girl paused, looking at Ladybug’s face again. A strange expression softened her sharp features—a mixture of profound relief and deep sorrow. She bit her lip, stepping back. "Acknowledged. Subduing the threat takes priority. I will monitor the perimeter."
Ladybug didn't have time to process the weirdness. She turned back to the akuma. Using the double-sided tape from her Lucky Charm, she quickly coordinated with Chat Noir. Within two minutes, Chat Noir had shattered the villain's clipboard with his Cataclysm, and Ladybug caught the escaping purple butterfly in her yoyo.
"No more evil-doing for you, little akuma," she said, releasing the pure white butterfly into the breeze. She tossed the tape into the air. "Miraculous Ladybug!"
The swarm of magical pink light swept across the Place des Vosges, repairing the broken chimney, the shattered pavement, and restoring Le Bureaucrate back to a very confused, ordinary city worker.
But as the magic faded, Ladybug realized one thing: the pink light didn't touch the girl in the Robin suit. The singed edges of her cape remained singed. The crack in her wrist-comms remained cracked. The magical restoration of the Miraculous fixed damage caused by akumas—but it didn't touch things that belonged to a different reality or a different time.
The girl was still standing there, watching the magical ladybugs fade with an analytical, calculating expression.
"Nano-machinery with Magic?" the girl murmured, stepping closer and picking up a lingering speck of pink light that dissolved against her gauntlet. "It matches the historical data on the Parisian Miraculous incident of the early 2020s, but seeing it in person is... impressive."
Ladybug and Chat Noir exchanged a long, profoundly confused look.
"Alright, kid," Chat Noir said, leaning on his staff. "The bad guy is gone, the park is pretty again, and my ring is down to four minutes. Who are you, where did you get that incredibly cool (if slightly terrifying) gear ?"
The girl straightened her posture, pulling her tattered cape around her shoulders with a regal dignity that seemed entirely unsuited for a thirteen-year-old.
"My designation is Robin," she said, her voice clear and commanding. "My name is Martha. I am the daughter of Batman and Ladybug. And judging by your current physical development, your lack of advanced tactical infrastructure, and the fact that you do not recognize me... I have been displaced approximately twenty-five years into the past."
The silence that followed Martha's declaration was heavier than any weight Le Bureaucrate could have thrown.
"Daughter of... Batman?!" Ladybug gasped, taking three frantic steps back until her boots hit the base of the fountain. Her mind immediately conjured images of the terrifying, legendary vigilante who ruled Gotham City with an iron fist. She had seen international news broadcasts of him—he was a towering, brooding force of nature, a founding member of the Justice League. "Wait. No. Hold on! Batman is an adult! He's... he's a grown man! He’s an icon! He is definitely years older than my own father!"
A cold spike of sheer panic shot through Ladybug's chest. She wrapped her arms around her stomach, her voice rising an octave as her thoughts went entirely wild. "You're telling me I have a child with a founding member of the Justice League who is older than my parents right now?! That’s impossible! That’s horrifying! I’ve never even been to America!"
Martha sighed, a remarkably tired sound for a thirteen-year-old, and pinched the bridge of her nose beneath her domino mask. "Calm down, Maman. You are misunderstanding the timeline. You do not have a child with the original Batman. He is my grandfather. My father is the son of Batman. In your current year, he is nineteen years old and operates as the current Robin in Gotham City."
Ladybug blinked, the panic shifting into a dense, dizzying fog of confusion. "Nineteen? The current Robin?"
She tried to process the information, her mind reeling. She had crossed paths with a few international hero reports, but her world was strictly bound to the borders of Paris, to the relentless stress of Hawkmoth, and to her own incredibly complicated personal life. She had only recently managed to move past an intense, emotionally draining unrequited crush on a classmate—a process that had taken immense emotional energy—but she was still entirely single.
The idea of falling in love with another hero was daunting enough, but a hero overseas? Someone she had never met, who lived in the most dangerous, crime-ridden city in the world? A guy who wore heavy body armor and has been a hero for years afterall everyone knew the current robin was barely ten when he picked up the mantle?
I could never see myself falling for a dark, intense Gotham vigilante, Ladybug thought, her chest tightening with conflict. I don't even speak English well enough to argue with someone that intense! How could this even happen? I can't imagine ever leaving Paris, let alone falling for someone across the ocean whom I've never even met.
"Oh, please!" Chat Noir suddenly stepped forward, his leather boots clicking sharply against the cobblestones. His jaw was clenched, and his cat ears were pinned flat against his messy blonde hair. A dark green glint of pure jealousy flared in his eyes. "A nineteen-year-old Gotham kid? An guy from across the ocean just swoops in and steals my Lady? I don't think so!, there is no way you just abandon our partnership for some bird-boy in America!"
Chat Noir crossed his arms, glaring down at Martha with absolute disdain. "Listen here, little liar. I don't know what kind of game you're playing, but you need to stop making up stories. Ladybug and I are a team. We're a duo. We're bound by fate. You expect us to believe you fell through a magical sky-portal just to tell us a fairy tale?"
Martha tilted her head up, staring back at Chat Noir with a chillingly blank, aristocratic expression. "Your denial is irrelevant to the factual reality of my existence. I have no reason to fabricate my lineage, nor do I care about your adolescent insecurities."
"Oh yeah?" Chat Noir scoffed, turning to Ladybug with a look of absolute urgency. "My Lady, think about it! A mysterious girl drops out of a random portal, looks exactly like a living weapon, claims to be from the future, and completely shatters your focus by calling you 'Maman'? This is a classic Hawkmoth trap!"
He pointed his staff at Martha, though his eyes remained fixed on Ladybug, trying desperately to ground his partner. "She's a Sentimonster! She has to be! Hawkmoth probably found out about the Justice League through global news, created a high-tech sentimonster designed to look like a futuristic hero to confuse us, and sent her here to make you drop your guard! Don't look into her eyes, Ladybug! It's an illusion to get your Miraculous!"
Martha didn't flinch at the accusation. Instead, she reached slow and steady for her utility belt, her voice dropping into a dangerous, icy register that sounded far too much like the dark city she claimed to come from. "If you accuse me of being an artificial construct one more time, feline, I will personally test the structural integrity of that indestructible suit of yours. I am a Bat. We do not take insults lightly."
Ladybug held up both hands, her mind spinning as she looked between the furious Chat Noir and the deadpan, deadly serious girl standing in front of them. "Everyone, just... stop! We need to figure this out, and we need to do it calmly before Chat's ring runs out of power!"
"My ring is the least of our problems if Hawkmoth is dropping future-birds on us!" Chat Noir insisted, though a sharp beep from his ring emphasized his limit. "My Lady, please, look at the facts!"
Ladybug looked at Martha, whose stoic, unyielding posture held a strange, familiar weight that she couldn't quite shake. The world felt entirely upside down, and the future had never seemed so dangerously unpredictable.