Who is maria pia in the story one day of life by manlio argueta?

In "One Day of Life" by Manlio Argueta, María Pia is a young girl who represents innocence and hope amidst the turmoil of El Salvador's civil conflict. She is the daughter of the protagonist, a mother named Lupe, and her character embodies the struggles faced by families during times of political unrest. María Pia's interactions and the challenges she encounters highlight the impact of societal issues on the younger generation, illustrating both the fragility and resilience of life in a war-torn country.