Five years ago, Lee Eun-ji fled Seoul with a shattered heart and a secret she swore to protect: Min-jun's child growing inside her. Now, she's back—with her daughter Sora—summoned by a cryptic message from Min-jun's powerful father. Her plan is simple: confront the man who tore them apart, protect her daughter, and leave again. But fate intervenes when the first person she sees is Min-jun himself—her first love, now a cold, commanding CEO. The moment his eyes meet Sora's, the truth becomes undeniable, and the lies that kept them apart begin to crumble. Between corporate wars, family manipulations, and the threat of losing her child, Eun-ji must decide if she can trust the man who broke her once before—or if this Christmas reunion will destroy them both for good.