"Second-Class Citizen" is a poignant narrative about a young Nigerian woman, Adah, who dreams of getting an education and moving to the United Kingdom. Despite cultural and societal obstacles, Adah manages to achieve her dream but is met with more hardship as she faces racial discrimination, an abusive marriage, and the struggle of raising five children in a foreign land. Through her resilience, she continues to strive for a better life, depicting the struggles of immigrants and the strength of women.

The novel follows the inspiring journey of a young Nigerian girl who yearns for an education and a better life beyond the confines of her small village and the oppressive customs that limit women's opportunities. Despite being trapped in a series of servitudes after being sold into marriage at a young age, she refuses to let her dreams be silenced. With indomitable spirit and determination, she navigates through a myriad of challenges, using her "louding voice"—her bold, resolute inner voice—to speak out for herself and others like her, in pursuit of her ambition to learn and to be heard in a world that often tries to quiet the voices of girls and women.

This novel explores the lives of two families in New York City during the 2008 financial crisis. One family is a wealthy couple who live a luxurious lifestyle due to their Wall Street connections, while the other family is a pair of Cameroonian immigrants who are trying to make ends meet. As the financial crisis hits, both families face challenges that test their relationships, their dreams, and their understanding of the American Dream.