Aversa is a character from Fire Emblem Awakening. She is introduced as a student of Validar, a vassal of King Gangrel of Plegia. After Gangrel's ultimate defeat in Plegia's war with Ylisse, Aversa rises to second-in-command when Validar assumes the Plegian throne. Secretly, she and Validar are members of the Grimleal, a cult that worships the Fell Dragon Grima. She and Validar scheme to acquire the Fire Emblem as a means to revive Grima, but Chrom and his allies fight against this plot and defeat her in the process.
It is later revealed that Aversa was a pawn of Validar. Once a normal village girl, her talents were recognized by Validar and he brainwashed her. To prevent the brainwashing from being undone, he also murdered everyone with a strong connection to Aversa's former life, including her parents. Upon learning the truth of her past, she joined Chrom and his allies in order to atone for her past actions by defeating Grima and destroying the Grimleal. After the war, Aversa returned to her childhood home and lived a normal life, perhaps to make up for the lost time that Validar had stolen from her.
Aversa appears as an enemy Mirage, found outside of Shibuya. Aversa's Mirage form is a dark, centaur-like pegasus, a reference to her character class in Fire Emblem Awakening; the pegasus-riding Dark Flier. She has a cold, ruthless personality. She strikes at the weakness in Tsubasa'solder sister's heart and enjoys controlling her. It seems she knows something about the truth behind the enemy's motivations.