Raising Nina follows two identical sisters who were born apart and live separate lives without knowing each other. Mara was born into a wealthy cradle and lives in luxury, but Nina is a reggaeton dancer and backup vocalist who tours numerous performances a night and waits for her turn. Nina is tired of her unfaithful boyfriend, covered in bills and without a future, when two strangers offer her a lot of money to impersonate Mara, an unambitious heiress imprisoned in Miami for an affair. of drugs after going to Miami without authorization, a prison that would stain the millionaire Dos Puertas family. Nina must adapt her appearance, lifestyle, and speech to replace Mara, as well as lie about being in a relationship with Antonio, her fiancé, who wrote a book he did not write. Antonio finds and changes the book after his brother Luca's accident and coma, making it a best seller. Luca wakes up two years later. His relationship with Mara will be strained as Nina replaces her.