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Language:
English
Series:
Part 3 of Gotham Universe
Stats:
Published:
2026-05-17
Completed:
2026-06-03
Words:
710,672
Chapters:
123/123
Kudos:
7
Hits:
388

ALTER EGO | Gotham|

Summary:

Luna Lou had never known an easy life. Gotham's streets raised her—teaching her to steal without getting caught, talk her way out of trouble, and survive when no one else cared. Sharp-tongued, quick-footed, and impossible to ignore, she met danger with a crooked grin and a sarcastic quip.
If Gotham swallowed people whole, Luna refused to be digested.
The only constant in her chaotic world was Selina Kyle. They'd grown up together—two strays who became family. Where Selina was quiet and watchful, Luna was loud, bold, and impossible to shut up. They balanced each other perfectly: claws and laughter, shadows and spark.
Until Selina casually mentioned she'd befriended Bruce Wayne.
Luna laughed. But curiosity won. Meeting the polished billionaire was supposed to be a joke. It wasn't. Behind the kind eyes lay a man tangled in secrets, power, and danger far deeper than Luna's streets.
As Luna is pulled into Bruce's orbit and Selina drifts away, the lines between alleys and mansions blur. In a city of corruption, masks, and monsters, getting close to the truth has a price.
In Gotham, survival isn't just staying alive—it's deciding who you are when everything tries to change you.

Notes:

AUTHOR'S NOTE!!

Okay, okay... I know, I KNOW. You're probably staring at this thinking, "Didn't she just finish Needy? Didn't she literally just wrap up June's entire story arc like two weeks ago?"

Yes. Yes I did. And yet... here we are.

I caved. Hard. I tried to resist, I really did. I told myself I was done with Gotham for a while, that I needed a break, that maybe I should write something normal for once. But Gotham has its claws in me way too deep, and apparently it wasn't ready to let me go. The second I started thinking about this new idea, it latched on and refused to shut up. So yeah... I'm writing another Gotham fic. Sue me.

And before anyone comes for me — yes, I'm fully aware I just spent months deep in Jerome territory. I love that chaotic gremlin with my whole heart. But sometimes a girl needs a detour, alright? And who better to detour with than the one and only boy billionaire himself... Bruce freaking Wayne. (Sorry Jerome, I'll come back to you eventually. Probably. Maybe. Don't throw a tantrum in the meantime.)

This story has been living rent-free in my head for weeks now — Luna Lou, this loud, sarcastic, street-smart whirlwind who's spent her whole life surviving Gotham the hard way. She's everything I love throwing into this dark, twisted city: sharp-tongued, fiercely loyal, impossible to intimidate, and completely unprepared for what happens when her little world collides with the glittering mess that is Wayne Manor and the boy who lives there. Throw in Selina being all mysterious and distant, the slow-burn tension, the blurring lines between the gutters and the penthouses... and I was hooked.

I have zero idea how Luna's eventually going to get her Black Canary powers (send help, or theories — I'm open to both), but that's part of the fun, right? Figuring it out along the way while she's busy catching feelings, dodging danger, and trying not to lose the only family she's ever had.

So if you're here for messy emotions, rooftop conversations, sarcastic banter, complicated friendships, slow-burn romance, and all the glorious Gotham chaos... buckle up. I hope you enjoy this ride as much as I'm going to enjoy writing it. Hell, I hope you love it. I hope you scream at your screen, yell at me in the comments, and maybe even get a little too attached to these characters (because I already am).

Thank you for even clicking on this story. It genuinely means the world that you're here. Whether you've followed me from Needy and June's chaos or you're brand new — welcome. I can't wait to see where this goes with all of you.

Anyway, enough rambling from me. Let's dive back into the shadows of Gotham.

Have a great day (or night — let's be real, it's probably night if you're reading this). Stay safe out there... and try not to get stabbed in an alley on your way to the next chapter.

See you on the flip side,

—M.

Chapter 1: ALTER EGO

Chapter Text

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

"So feminine, so cunt 

 bitch, so feminine,purr, oh, so cunt."

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WARNING.

This fanfiction will contain mature content
Such as torture, kidnapping, forced kisses
unconsensual experimenting,  cussing,
brutal murders, stockholm syndrom, 
power dynamics, unhealthy relationshios 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

From the moment Luna Lou drew her first breath under the flickering signs of the Narrows, Luna learned that Gotham doesn't give second chances—it takes what it wants and leaves the rest to rot

From the moment Luna Lou drew her first breath under the flickering signs of the Narrows, Luna learned that Gotham doesn't give second chances—it takes what it wants and leaves the rest to rot. Quick-fingered, sharp-tongued, and impossible to pin down, she became a legend among the street kids: the girl who could lift a cop's badge while he was still frisking her, talk her way out of a gang hit with nothing but sarcasm and a wicked grin, and vanish into the alleyways like smoke when the sirens screamed closer. She didn't just survive the city's endless night.

 She danced in it. 

She bit back.

Her only anchor in a world of shifting alliances and sudden betrayals was Selina Kyle—Catwoman in the making, the silent shadow to Luna's wildfire spark. Together they were unstoppable: two feral queens of the rooftops, claws and laughter cutting through the cruelty of Gotham. Selina moved like liquid night, calculating every escape. Luna charged forward with reckless charm and a defiant laugh that dared the darkness to try her. They shared stolen food, hidden squats, and the kind of sisterhood forged in blood and concrete. For years, it was enough. Just the two of them against a city that devoured the weak and rewarded the monstrous.

Until the night Selina returned to their latest hideout with something dangerously close to softness in her voice.

Bruce Wayne.

The name alone was ridiculous. Gotham's golden orphan, heir to a crumbling empire built on the very corruption that kept girls like them scraping by in the gutters. Luna laughed until she cried—until she realized Selina wasn't joking. Curiosity, that old and treacherous friend, sank its claws deep. What game was the rich boy playing? What secrets hid behind those haunted eyes? Meeting him was supposed to be a lark, a story to mock later over cheap cigarettes on a fire escape. It wasn't.

Bruce was quiet kindness wrapped in old grief, awkward charm beneath the weight of expectation, and far more dangerous than any mark she'd ever conned. The more Luna let herself linger in his world of sprawling manors and hidden truths, the more the lines blurred between street thief and something almost like hope. For the first time, Gotham's night felt a little less suffocating.

Then came Jerome Valeska.

The laughing psychopath with chaos in his veins and obsession burning in his mismatched gaze. From the moment their paths crossed in the city's growing madness—back at that stupid circus when she'd thought he was a poor boy who lost his mother—Jerome decided Luna belonged to him. Her fire, her defiance, her unbreakable spirit... they were meant for his madness. She told him no. She called him crazy. She fought back with every weapon she had: her wits, her fists, her loyalty to Selina and the unexpected pull toward Bruce.

But in Gotham, "no" is never the end of the conversation.

It's only the beginning of the nightmare.

As the city spirals deeper into darkness—corrupt cops, emerging freaks, and the thin line between hero and villain blurring beyond recognition—Luna Lou finds herself torn between two worlds. The golden shadow of Bruce, offering a fragile chance at something real, and the blood-soaked laughter of Jerome, who will burn everything down to possess her. Loyalty to Selina. Survival on the streets she once ruled. And a choice that could save her... or destroy them all.

In a city where everyone wears a mask, Luna Lou is running out of places to hide.

And Gotham never lets anyone go easily. And some obsessions laugh all the way to the end.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

"think there's a flaw in my code
These voices in my head 
won't leave me alone.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LUNA LOU 

 

 

 

 

 

 

 

 

SELINA KYLE 

SELINA KYLE 

 

 

 

 

 

 

 

 

BRUCE WAYNE

BRUCE WAYNE

 

 

 

 

 

 

 

 

JEROME VALESKA 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

"You were comforting and quiet
How did love become so violent?"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

"Boy, you're so crazy, baby
I love you forever, not maybe"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUTHOR'S NOTE!!