Everyone is a sinner. Some just hide it better. Soraya Patel should have known she was in trouble the moment Professor Cassian Black looked at her like he could read every sin she hadn’t committed yet. Winning his mentorship was supposed to be her breakthrough, not the beginning of an obsession she is too scared to admit. Cassian is brilliant, cold and dangerously controlled. His attention unravels her. His voice pulls at something reckless inside her. And the worst part? She wants him even when she knows she shouldn’t. So she runs to the only place that has ever felt safe — Kairo Voss, her best friend and almost-first love. The boy who has always been steady hands and quiet loyalty. Except that Kairo isn’t steady anymore. Not when he looks at her like she’s the only thing he has ever wanted. Not when jealousy turns his calm into something sharp and possessive. Not when his touch stops feeling safe and starts feeling inevitable. What she doesn’t know is that the two men pulling her apart — the professor who tempts her and the best friend who burns for her — share the same blood as father and son. And by the time the truth hits, she’s already in too deep. One wants to protect her. One wants to ruin her. Both want to claim her. Now, she is trapped between love, obsession and a family secret that was never meant to be touched. Her professor. Her best friend. Their blood. Her sin. Because in a world where ambition tastes like obsession and truth is just another form of manipulation, there are no heroes — only sinners learning to live with their sins.