Liam Rogers and Sarah Miller have lived as a devoted couple for five years, yet they never signed a formal marriage license. When Sarah’s reclusive billionaire ex, Ethan Cole, returns from abroad, her heart begins to waver. Pushed by a toxic friend, Sarah distances herself from Liam to pursue a royal life with Ethan. Heartbroken, Liam accepts a high-stakes transfer back to corporate headquarters, vanishing from her life. Only after his departure does Sarah realize she discarded a king for a ghost. As her old love wails in regret, a new billionaire romance blooms—but this time, Liam is the one who has moved on.