Can gender be learned and unlearned? Félix and Hipólita, two siblings separated at birth, are brought up in the habits of the opposite gender. Kept close by his mother’s side, Félix is timid and sensitive. Hipólita, trained by her father on the battlefield, is fiercely attached to her sword. When the family is reunited, the father insists on making the siblings conform to traditional gender roles. Helped along the way by their respective love interests, the two gradually assume traditional positions, but their journeys expose the limitations of the gender system. By Guillén de Castro.