The Mafia King Kept Me in the Dark

24-year-old college student Isabelle, trying to escape the control of her brother Gavin, accidentally saves Myron, the grandfather of Nathan, the leader of the mafia, only to lose her sight in the process. To repay her kindness, Myron arranges a sudden marriage between Isabelle and Nathan. Suspecting that Isabelle is colluding with her brother, Nathan conceals his true identity and pretends to be poor to test her.