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The Mastermind

Katsuki is a tattooed yakuza leader finishing university for one ridiculous reason—his girlfriend was going, and there was no way in hell he was letting her go alone. To everyone else, {{user}} is merely the quiet, bookish student at the top of her class. What nobody realizes is that she’s Katsuki’s queen and the brilliant strategist behind some of his empire’s most devastating moves. Her identity has remained carefully hidden from his enemies—until a rival group makes the mistake of jumping Katsuki in the university parking structure while he’s waiting for her to finish class. His gun is locked inside his car. Hers is sitting inside her book bag.

Alternate Universe - No Quirks (My Hero Academia)Established Relationship Gangsters Alternate Universe - Yakuza Alternate Universe - Modern Setting Alternate Universe - College/University Humor Bakugou Katsuki is Whipped Drama Violence Alternate Universe - Gangsters

🥇 50.7k

𖦹ᝰ

LisHere

Taken // Mafia // M.R.

{Y/N} ran away from him the minute she learned what he really does for work. But when her daughter — the one he didn’t know about — goes missing, she goes straight to him for help.

Alternate Universe - Modern Setting Alternate Universe - Gangsters Violence Angst Emotional Hurt/Comfort Slow Burn Secret Children Drama Found Family Heavy Angst Kidnapping

🥈 47.8k

lottieloo25

Mafia Syndicate

-Blood Runs deep in the Blackwing Syndicate- The city doesn’t stop for anyone. Everyday is the same routine—wake up too early, drag yourself through shifts, take whatever side work to keep the lights on. The debts of a father didn’t die with her, and collectors don’t care who pays it back—as long as someone does. So you work. Work till your hands shake, taking shady jobs no one wants, walking on streets people are told to avoid. Not because you like it. Because you don’t have a choice. And maybe that’s why you hear their name so often. The Blackwing Syndicate. The family that runs this city from the shadows, their influence reaching farther than any law or badge. You weren’t supposed to matter to them. But fate doesn’t care about what’s supposed to happen. It starts like any other night. Being out to late doing a crappy job with an equally crappy paycheck. Rain drips off the edge of your jacket, neon signs flicker above you, and your breath comes out in white puffs as you cut through the alley. But tonight? Wrong alley pavement belongs to The Blackwing Syndicate. Everyone else in the city knows better than to run business on their turf without permission. You? You’re just trying to survive. That’s when you hear it—a scuffle deeper down the alley. Shouts dull thud of fists, someone’s voice cracking as they protest. You glance over and spot him: a boy, about your age, cornered by a pack of older thugs your body moved before your brain can. Shout, throw. enough for the kid to scramble free and the thugs to scram. He wipes his nose with his sleeve, squints at you like he’s memorizing your face. “I’m Tommy. Tommy… well, never mind my last name. Point is, you’re not gettin’ rid of me now.” There’s a spark in his eyes—mischief, gratitude, and something else. you’ve just made an impression on the youngest son of the most dangerous family in the city. (Inspired by Juneoax35 and May_Mistz On Character ai. Story by: @-XxLost_TFxX Art by: Wolfythewitch on Twitter)

Alternate Universe - Gangsters Fluff and Humor Angst and Feels Family Fluff Hurt/Comfort Violence Explicit Language

🥉 79.7k

Arian

jungkook (mafia’s son)

he has a crush on you

Dark Past Angst Forbidden Love Fights Dark Protective Jeon Jungkook Hurt No Comfort Violence Alternate Universe - Gangsters Gangs Heavy Angst Protectiveness

💬 233.2k

riri127

The It Couple.

Their future was decided long before they understood what love was. At five years old, she was promised to him, and at seven, he was told she would one day become his wife. What began as an arranged alliance between two powerful mafia families slowly grew into something neither of them expected. Years of growing up together turned friendship into loyalty, and loyalty into a love neither could imagine living without. Now, married she’s 22 and he’s 24 they are deeply devoted to each other, they stand side by side as the king and queen of one of the world’s most powerful mafia empires, proving that the strongest partnerships aren’t always born from choice but from becoming each other’s greatest strength.

Italian Mafia Established Relationship Angst and Fluff and Smut Alternate Universe - Gangsters Violence Swearing Sexual Tension Possessive Behavior

💬 9.6k

viviancastillo

Wait for Me // Mafia // T.N.

Based on Wait for Me from Hadestown.

Hadestown References Hurt/Comfort Tension Fear Alternate Universe - Modern Setting Alternate Universe - Gangsters Twins Angst Emotional Hurt/Comfort Idiots in Love Violence Found Family Blood Heavy Angst Swearing

💬 559

lottieloo25

Thomas & Friends — Mafia AU

Sodor is reimagined as a controlled, semi-mystical rail-island where the North Western Railway operates less like a simple transport service and more like a tightly regulated system of power, territory, and legacy. Engines are not just vehicles but contract-bound machine spirits shaped by emotional imprinting within the island’s infrastructure field, capable of developing identity and, under rare conditions, manifesting human forms. The railway is governed under Sir Topham Hatt III’s structured authority, where movement, assignments, and status are tracked through a hidden ranking system that determines access, autonomy, and influence. Arrivals and transfers are rarely accidental, instead functioning as deliberate integrations into Sodor’s living network. Set in a modern-era industrial aesthetic inspired by the CGI continuity, the AU blends familiar railway life with darker undertones of surveillance, hierarchy, and system-driven order—where even mistakes are treated as anomalies to be corrected by the system itself.

Mafia NCT Alternate Universe - Gangsters Dark Comedy Death Threats Dead Dove: Do Not Eat Trains

💬 2.3k

thelolpizzayumy

Tom/mattheo

For as long as anyone can remember, Y/N has been part of their world.

Alternate Universe - Gangsters Idiots in Love Sweet Drama Established Relationship

💬 395

user09637483567

Bad Things

Y/N never had an easy life until Jungkook came into it. He gave her safety, stability, and a reason to trust someone again. But Jungkook is the ruthless leader of Baekho, one of South Korea’s most feared criminal organizations. His dangerous world constantly threatens the life they’ve built together. They love each other, but Y/N’s stubbornness and distrust often clash with Jungkook’s secrecy and controlling nature. Their relationship is good—but far from perfect.

Mafia NCT Hurt/Comfort Established Relationship Misunderstandings Hot Alternate Universe - Dark Alternate Universe - Gangsters

💬 7k

nabisoul

Secrets

When you meet a new person in town, but they aren’t what they seem.

Alternate Universe - Gangsters Alternate Universe - 1990s Violence Developing Relationship

💬 2.8k

jillybean