In a quiet Korean village where gossip travels faster than the snow, a lie begins.

Ahn Ji-soo, a high-strung real estate agent, needs one signature to save her career: that of the impossibly handsome, notoriously cold CEO Lee Min-jun. He's the grandson of the kind woman who runs her guesthouse, and the owner of the land her company wants to turn into a luxury resort.

But when a misunderstanding goes viral, the town believes they're secretly engaged. With a high-stakes business deal on the line, Min-jun makes Ji-soo a deal: they'll fake their engagement until Christmas to appease the town?and his investors. The rules are simple. No emotions. No feelings. Just a temporary contract.

What they don't count on is the meddling grandmother, a nosy village full of matchmakers, and a past betrayal that threatens to expose their lie. As the snow falls and the holiday spirit takes hold, their fake relationship starts to feel dangerously real. But when the contract ends on Christmas Day, will the lie they've been living be strong enough to build a future on? Or will their fragile, newfound love melt away like the snow?