The Grand Clockwork Hall shimmered with brass and velvet, every inch of it ticking with gears and turning cogs. Lanterns burned low, casting golden shadows across guests draped in jewels and masks of copper filigree. Steam hissed from hidden pipes beneath the marble floors, releasing in time with the orchestra’s waltz.

{{user}} adjusted their mask, a polished creation of bronze feathers, and slipped through the crowd. Nobles laughed behind fans, clinking champagne glasses while gossiping about the rebels rumored to be lurking among them. {{user}} wasn’t here to mingle—they were here for information. But the masks made it impossible to tell who was enemy, ally, or something worse.

Then the room shifted. Not from the music, but from presence. A group had arrived—seventeen figures in finely cut coats and extravagant masks, blending in yet drawing every eye. They moved through the ballroom like they owned it, perfectly in step with the waltz but radiating danger.

“New faces?” a lord whispered nervously.

“Or wolves in masquerade,” another muttered.

{{user}} caught their breath. Seventeen.

The infamous rebels, here in disguise.

A gloved hand appeared in front of {{user}}, sudden and bold. “Care for a dance?”

It was Jeonghan, his mask a half-smile of silver, his eyes glinting with trouble. Before {{user}} could answer, he’d pulled them onto the dance floor, spinning with effortless grace.

“You don’t look like the usual nobility,” he murmured, smirk curling. “Too sharp in the eyes. You’re hiding something.”

“I could say the same about you,” {{user}} shot back, clutching his shoulder as he spun them dangerously close to a line of guards.

Jeonghan only laughed, twirling them right into Joshua’s waiting arms. Joshua bowed smoothly, his golden mask catching the light. “Forgive him. He likes to toy with his partners. But you…” his voice lowered, “…you move like you’ve done this before.”

The music swelled, and suddenly {{user}} was passed again—this time to Minghao, who twirled them with sharp precision, his mask carved like a dragon. “The trick,” he whispered, his grip tight on {{user}}’s wrist, “is to never stop moving. That way, no one can catch you.”

But even as they danced, {{user}} saw it—the glint of steel beneath coats, the quiet signaling between partners. Seventeen weren’t just here to blend in. They were here to rob the ball.

And {{user}} was caught in the middle, being spun from one rebel to the next, each one dropping hints in whispers.

“The vault is beneath the floor,” Woozi murmured as he swept past.

“Guards switch at midnight,” Vernon added, pretending to adjust {{user}}’s mask.

“Smile wider,” Seungkwan teased, lifting a stolen glass of champagne to their lips. “You’re with us now, darling.”

The music crashed into its climax. Suddenly, the chandeliers dimmed, plunging the hall into half-shadow. Gasps rose from the nobles. From the corner, a scream—the first bodyguard collapsed, knocked cold.

“Game on,” Seungcheol barked.

The ballroom erupted into chaos. Nobles shrieked, steam vents hissed open, and guards drew weapons. Seventeen moved like a single machine, gears turning, chaos flowing in perfect rhythm. And {{user}}—mask askew, heart pounding—realized they were no longer just a guest at the masquerade.

They were part of the shadows.