 One day while working at her father's store, Maria was approached by taxi-driver Pedro "Trompeto" Alvarez, who reveals that Frijoles de Oro is in need of her talents.As a publicity stunt, Frijoles de Oro hires both Maria and Trompeto to act as Mexico's first superheroes.Maria reluctantly agreed to don her former persona of Chesty Sanchez, only to help with her parents' expenses.