Niña de Mi Corazón revolves around Andrea Paz, a young woman who abandons her dreams of going to college to support her family after her father's accident. She becomes entangled in a plot involving identity and romance when she pretends to be a man to work at a company, falling in love with the wealthy heir Darío Arrioja, who mistakes her for a boy while she struggles to protect her secret and her growing love for him.
