So-yeon has endured a year under Jae-ryun, the fault-finding boss who refuses to let her go. She's his long-suffering assistant, dragged into his private life and forced to witness his endless affairs. One night, Jae-ryun offers a wicked deal: a week of freedom if she can stay sober past five bottles, or pay him a price he names if she fails. She loses. His demand is simple, brutal, and intimate: "I want you in my bed." But the morning after their single night together, everything changes. The detached, arrogant man is gone, replaced by a possessive stranger. He's territorial, hot-and-cold, and burning with a jealousy he can't deny. He touches her as if he owns her, but refuses to admit feelings. So-yeon, who always believed she was plain and only wanted for her wealth, is suddenly desired for reasons she can't comprehend. Why does this man look at her like she's the only woman he's ever wanted? And how long can they both pretend their night was just a transaction?

I knew falling for him was wrong- my best friend's stepbrother, my CEO, the man she swore had blood on his hands. But when Akira Hiroshi kissed me in his office last night, pressing me against the glass like he owned every breath I took, I stopped caring about right and wrong. "We can keep this a secret, Risa," he whispered against my mouth. "Miya doesn't have to know." Too late. I'm already his sin. And he's becoming the one I'd burn my whole life for.

Nessa Hills is a woman with complex interests who seeks something more in the dark corners of an exclusive BDSM club. As a natural submissive, she's sought to explore her kinks with numerous Dominants, but none have fully kindled the connection she seeks-until Caleb. Caleb is more than just an extraordinary CEO; at night, he governs Hell. When their paths intersect, the spark is unmistakable, and Caleb notices something in Nessa that no one else does. He is desperate to possess her body and spirit, pushing her to new heights she has never experienced. As their interactions become more intense, Nessa is torn between the thrilling pull of Caleb's power and the fear of losing herself in his dark realm. But Caleb is not just any man; he is the Devil. And once he claims you, there is no going back.