The viceroy and his family are ordered to return to Spain, and Vicereine Leonor is utterly devastated to leave Juana Inés.

A nun's intimate secret is revealed and the new archbishop reacts harshly. Meanwhile, Juana Inés is surprised by her feelings for the new vicereine.

Father Núñez asks Juana Inés for a favor and she requests one in return after amorous letters are found in her room.