As an Apollite, Medea would have died at age twenty-seven, but her mother conjured a demon, intending to sell her soul to keep Medea alive. Once the demon fed on Zephyra, she killed it and gained its immortality. Her life is tied to Medea's.
Medea lived peacefully alongside the humans until the day they turned on her and killed her husband and child. She will never forgive or forget that treachery. Medea now lives in Kalosis with her parents.