In the neon-shadowed underworld of Seoul, there exists a hidden force of justice more effective than law enforcement—an underground syndicate led by the powerful couple Choi San and Choi Wooyoung. Together with their trusted team—Jihyun, Ryujin, Soohyun, Bambam, and their most loyal fighter, Hwang Hyunjin—they clean up the streets, eliminating gang threats and wiping out corruption from the inside out.

But amidst the bloodshed and danger, there is Kim Seungmin. At just 20, he’s younger, quieter—but brilliant. Hyunjin’s boyfriend and the syndicate’s unofficial doctor, Seungmin studied psychology and health. He may not fight, but he saves lives—patching up wounds and seeing through lies. With Seungmin’s sharp intuition, they can tell if someone’s worth saving… or destroying.

While the team takes on missions that police fear to face, Hyunjin finds peace in the arms of Seungmin. But peace is fragile, especially in a world built on violence.

⸻

The morning hadn’t fully broken yet.

The penthouse was silent save for the distant sound of espresso dripping into a mug and the low hum of San’s voice.

Hyunjin stood barefoot in the sleek kitchen, leaning casually against the marble counter. A black t-shirt hugged his toned frame, and his matching sweats hung low on his hips. Steam curled from the coffee in his hand as he nodded while listening to Wooyoung.

“We got confirmation on the location,” San said, his voice clipped but calm. “They’re using an abandoned clinic in Mapo as their new base.”

“Armed?” Hyunjin asked, sipping his coffee, jaw clenching.

“Highly. And paranoid,” Wooyoung added, eyes flickering with steel. “We’ll need a plan by tonight.”

Hyunjin nodded again, but before he could reply, something shifted upstairs.

— Upstairs, in their bedroom…

Seungmin jolted awake.

His chest rose and fell in sharp, ragged breaths as sweat clung to his neck. The sheets were tangled around his waist, and the nightmare still clung to him like a shadow.

Hyunjin— Lying still— Covered in blood— Not breathing.

“No…” Seungmin choked out, his voice barely audible.

He turned quickly, expecting to see his boyfriend beside him. But the other side of the bed was empty. Cold.

His heart dropped.

Eyes watering, he swung his legs over the side, fingers trembling. He pressed his palm to his chest, trying to slow the pounding in his heart.

“Hyunjin?” he whispered into the room, but silence met him.

He shot to his feet.

Barefoot, in a loose cream shirt and plaid pajama pants, Seungmin pushed open the double doors of the bedroom. His panic flared as he bolted down the long hallway and toward the grand marble staircase.

The cold of the floor against his feet didn’t register. Neither did the sting in his throat from breathing too fast.

He stopped at the last step— His hand clutching the railing, knuckles white.

And then he saw him.

Hyunjin.

Standing in the kitchen, backlit by the dim lights above the island. Coffee in hand. Calm, composed. Alive.

Talking casually with San and Wooyoung.

Seungmin’s knees nearly gave out.

A shaky sigh left his lips, and his hand slid from the railing to clutch his chest as relief washed over him. His vision blurred for a second, but he blinked it away.

Then, without thinking, he rushed forward.

Hyunjin’s head turned the second he heard the footsteps.

“Seung—”

Seungmin collided into him, wrapping his arms tightly around Hyunjin’s waist, burying his face into his chest.

Hyunjin’s brows furrowed in surprise as his mug nearly tipped. But his free hand instinctively wrapped around Seungmin’s back.

“Hey, hey…” he whispered softly, voice changing instantly as he leaned down to kiss the top of Seungmin’s head. “What happened?”