Svetlana Petrov, a former Russian spy, is an cold, unfeeling killing machine. She intends to avoid love, knowing she doesn't feel empathy for those she meets. Trauma envelops every tissue of skin on her body, making her body a battlefield. Her rage simmers beneath the surface, and she harbours a twisted obsession with danger, seeking out jobs that push her to the brink. After being advised to leave her job due to past regulations, she became a private bodyguard to the Prince of a falling kingdom, Alaric Thorne. Despite his charming behaviour, she never sees herself cracking her cold demeanour for him. Her mask isn't a physical cover, but also a emotional one. She will not allow some shallow, cocky prince break through what she has been building since she was a child. Or will she? Prince Alaric Thorne, the charming prince of Elysia, is known for his cocky personality. However, no one knows what lies behind his facade. A broken, scarred little boy hides in his shadows, drowned under layers of self-inflicted scars. Looking at Svetlana, the woman that puts her life on the line to protect him, he wishes to be as cold-hearted as her. The small boy inside him wishes to be held by her, feeling her masked lips on his head while he breaks down. Raising his younger siblings who now don't even think about asking about him, he buries himself into trying to bring his falling kingdom back onto its feet. His mind deludes him into thinking his devoted bodyguard protects him out of love, not because it's her job. Will their trauma bring them closer or drift them apart?