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Stray kids mafia AU

The Velvet Leash and the Gilded Cage

The Grand Ballroom of the Onyx Hotel was a cathedral of sin, illuminated by crystal chandeliers that dripped with the cold light of a thousand diamonds. Here, the air smelled of expensive cigars, aged bourbon, and the metallic tang of hidden weapons. It was the biannual Neutral Ground Gala, a night where the deadliest men in the world traded territories like playing cards and signed blood treaties over glasses of champagne.

When the heavy oak doors swung open, a hush rippled through the room. It wasn't just because Yang had arrived—though his reputation as the man who had personally dismantled the Park syndicate in a single afternoon preceded him—it was because of the figure clinging to his side.

Seungmin moved with a delicate, ethereal grace, his bare feet silent on the polished marble. He was dressed in a sheer, cropped silk blouse of midnight blue that shimmered under the lights, revealing the faint, silver lines of whip scars on his back whenever he moved. True to his comfort, he wore no trousers; instead, a pleated white skirt fluttered around his hips, short enough to keep the fabric far away from the sensitive, mottled burn marks on his thighs. Around his neck sat the familiar black leather collar, a stark contrast to his pale, porcelain skin.

He looked like a doll lost in a den of wolves, but his eyes told a different story. They darted around the room with a sharp, predatory focus, his black-nailed fingers twitching against Yang’s palm.

"Yang," Seungmin whispered, his voice a raspy, childlike thread. "Bright. Too... bright."

Yang squeezed his hand, his expression softening into something unrecognizable to the men surrounding them. "I know, Minnie. But look over there. Do you see the table with the colors?"

Seungmin’s eyes lit up as he spotted the buffet, a sprawling landscape of exotic fruits, pastries, and delicacies. He practically dragged Yang toward the long table, ignoring the stares of the most dangerous men in Asia. He didn't care about the power dynamics or the whispered rumors; he only cared about the vibrant displays of food.

He pointed a black-tipped finger at a small, translucent cube of amber jelly. "This?"

"That’s a honey-infused gelee, darling," Yang explained patiently, picking up a small silver plate.

Seungmin tilted his head, his brow furrowing. "Gell... ee? Sweet?"

"Very sweet," Yang confirmed, placing a piece on the plate.

Seungmin pointed at a cluster of deep purple grapes. "And... these? Purple... balls?"

"Grapes, Minnie. Remember? We had them last week in the garden."

Seungmin giggled, the sound high and slightly fractured, sending a shiver down the spines of the nearby guards. "Grapes. Purple... juice."

Once the plate was piled high with things that caught Seungmin’s flickering interest, Yang led him to a secluded velvet couch in the corner of the ballroom. He sat down first, and without needing to be asked, Seungmin climbed into his lap. He settled himself comfortably, his skirt bunching up, his bare toes curling against the velvet cushions.

Across the room, tucked into a shadowed alcove, eight men watched the display with varying degrees of heartbreak and fury. Stray Kids had come to the gala to monitor Yang’s movements, but seeing Seungmin like this—so utterly dependent, so brokenly happy—was a fresh wound.

"He’s eating," Felix whispered, his voice thick with tears. "He only ever eats when that monster feeds him."

"Look at his neck," Chan growled, his hand tightening around his glass until the crystal groaned. "He’s still wearing it. Two years and he’s still wearing that damn collar."

Back on the couch, the world had narrowed down to the two of them. Yang picked up a slice of starfruit, holding it to Seungmin’s lips. "What is this one called, Minnie? It’s shaped like the things you draw on my arms."

Seungmin chewed slowly, his eyes closing in bliss. "Star," he croaked after swallowing. "Star... fruit. Like... sky?"

"Exactly like the sky," Yang murmured, brushing a stray hair away from Seungmin’s forehead.

The peaceful moment was violently interrupted. A mid-level boss from a Northern territory, a man named Volkov who was more muscle than sense and clearly too far into his third bottle of vodka, stumbled toward them. He had been watching the "pet" with a disgusting, hungry leer for the last twenty minutes.

"You’re wasting that beauty, Yang," Volkov slurred, reaching out with a meaty, calloused hand. "A thing like that should be shared. Let’s see what’s under that collar."

Before Yang could even blink, Volkov’s fingers hooked into the leather of Seungmin’s collar. He yanked it upward, trying to pull Seungmin toward him. The leather bit deep into the jagged scar on Seungmin’s throat, the metal buckle catching on the sensitive skin and drawing a thin, bright line of blood.

Seungmin let out a sharp, choked gasp, his hands flying to his throat as his eyes filled with a sudden, overwhelming terror. "No! Water! No... sparks!"

The atmosphere in the ballroom didn't just shift; it died.

Yang’s movement was a blur of absolute, cold-blooded efficiency. He didn't stand up. He simply reached out and grabbed Volkov’s wrist with a grip that shattered the bone instantly. As the man began to scream, Yang’s other hand shot out, his fingers wrapping around Volkov’s throat with the precision of a vice.

With a sickening, wet *crack* that echoed to the rafters, Yang snapped the man’s neck.

He tossed the body aside like a piece of refuse, not even glancing at the guards who were now reaching for their guns. He didn't care about the potential war he had just started. He only cared about the trembling boy in his lap.

"Minnie, look at me. Look at me," Yang commanded, his voice trembling with a rare, raw emotion.

Seungmin was hyperventilating, his hands clawing at the leather. "Hurt... Yang... he... take... me..."

"No one is taking you," Yang hissed. He reached for the buckle of the collar, his fingers surprisingly steady despite the carnage he had just committed. He unhooked the leather, tossing the collar onto the floor.

He pulled a silk handkerchief from his pocket and began to dab at the small, jagged cut on Seungmin’s neck. "I’ve got you. It’s okay. I’m taking it off for a while, alright? We’ll let the skin breathe. It won't hurt anymore."

Seungmin leaned into the touch, his shivering slowly subsiding as the familiar scent of Yang’s cologne grounded him. He looked down at the collar on the floor, then up at Yang. "Off? No... pet?"

Yang’s heart, a cold and hollow thing to everyone else, felt a sharp pang. He pressed a firm, lingering kiss to the cut on Seungmin’s throat. "You’re always mine, Minnie. You don't need a piece of leather to prove it."

A group of high-ranking bosses, including a representative from the Triad, approached the couch. They stepped over Volkov’s cooling corpse as if it were nothing more than a tripped-over rug. They were businessmen, and they saw an opportunity in Yang’s display of power.

"Mr. Yang," the eldest man began, bowing slightly. "That was a... decisive move. We were hoping to discuss the shipping routes through the southern port. If we could perhaps sit and—"

Seungmin reached out and tugged sharply on Yang’s sleeve. He pointed to a bowl of red berries on the table. "Yang? Red... balls... sweet?"

The Triad representative frowned, clearly annoyed at the interruption. "As I was saying, the partnership could yield—"

Yang didn't even look at the man. He turned his back on the most powerful brokers in the room, giving Seungmin his absolute, undivided attention.

"Those are raspberries, Minnie," Yang said, his voice dripping with honey. "They’re a little bit sour and a little bit sweet. Do you want to try one?"

Seungmin nodded eagerly, his eyes wide. "Sour? Like... lemon?"

"A little bit. Here." Yang fed him the berry, watching with a soft smile as Seungmin’s face puckered at the tartness before he grinned.

"Mr. Yang," the boss tried again, his voice rising in irritation. "This is a matter of millions of dollars. Surely the boy can wait—"

Yang’s head snapped around, his eyes turning into shards of black ice. The sheer weight of his killing intent made the older man stumble back a step.

"The boy," Yang said, his voice a low, dangerous growl, "is the only reason I haven't burned this entire hotel to the ground for the way you’re all looking at him. If he wants to know about raspberries, you will wait. If he wants to color on my skin, the world stops turning. Do I make myself clear?"

The bosses paled, nodding frantically before retreating into the crowd.

From their hiding spot, Chan watched the exchange with a profound sense of defeat. He saw the way Yang looked at Seungmin—not as a tool, not as a toy, but as the very center of his universe. And he saw the way Seungmin leaned into Yang’s chest, his fingers tracing the outlines of the tattoos on Yang’s hand, looking more secure in a room full of murderers than he ever had in their dorms.

"He’s not coming back, Chan," Minho said softly, putting a hand on the leader's shoulder. "Yang didn't just buy him. He rebuilt him. Every brick in Seungmin’s head has Yang’s name on it."

Seungmin looked up from his berries, his gaze wandering across the room. For a split second, his eyes met Chan’s. There was no recognition. No spark of the boy who used to sing in the shower or complain about the dishes. There was only a fractured, beautiful curiosity.

"Yang?" Seungmin whispered, pointing toward the shadows where Stray Kids stood. "Man... crying?"

Yang looked over, his eyes narrowing as he spotted the group. He didn't reach for his gun. He simply pulled Seungmin closer, shielding him with his body. "Just a ghost, Minnie. Don't look at the ghosts. They aren't real."

Seungmin nodded, turning back to the plate of fruit. "Only... Yang... real."

"That’s right," Yang whispered, kissing the top of Seungmin’s head. "Only me."

As the gala continued around them, a swirl of blood and business, the two of them sat in their own private world. Seungmin asked questions about the colors of the wine and the texture of the velvet, and Yang answered every single one with a gentleness that would have horrified his enemies.

The collar was gone, but the bond was tighter than ever. Seungmin was a bird that had been broken and then taught to fly in a cage of gold and silk. And as he sat there, feeding Yang a grape with a giggle, it was clear that he would never dream of the sky again. The cage was warm, the master was kind, and the voices were finally, mercifully, quiet.