Christine Butler thought heartbreak was the worst thing that could happen—until she caught her boyfriend in bed with her own half-sister and stumbled into a stranger's arms to escape a drugged drink. One reckless night later, she vanishes at dawn, leaving behind the only "payment" she has: a single five-cent coin. She expects to never see him again. But the man she mistook for a gigolo is Bert Catharine—an untouchable heir with money, power, and a dangerous kind of patience. When Christine is betrayed, hunted by loan sharks, and sold like a prize, she wakes trapped in a glittering nightmare: an underground auction where she's displayed as the "purest mermaid"… and Bert bids one billion to claim her. Now he's found her, and he won't let go. Not while another man watches from the shadows—and someone else is lighting fires to turn her life into a game. Who bought her… and why?