Ephenia is the Queen of the Fairies of Ellin Forest. Ephenia and her fairies at one point swore allegiance with the Black Mage, causing great distress to Mercedes and her elves of Elluel. Ephenia and her fairies first made action when Athena Pierce arrived at Victoria Island with Aran's help. After Ephenia's death, peace was brought back to Ellin Forest and the fairies seem to have calmed down a bit.
A younger Ephenia is featured in the first Grand Athenaeum quest line, where her hatred of humans is given an explanation, and some justification. Before the White Mage became the Black Mage, the fairies were subjected to kidnapping by Evil Poachers, and the land being defiled by Hidden Grave Robbers. However, there was one human she did trust: the White Mage, who protected her and the fairies, while promising to return. Unfortunately, he never returned due to unexpected circumstances, souring her attitude towards humans even more, to the point where she allied herself with the Black Mage out of spite towards them. It is up to a time traveler in Ellin Forest to stop her from launching an attack on the citizens of Altaire Camp.
- Ephenia's backstory is ironic in that the White Mage breaking his promise to return is what led to her losing any trust in humans, but she ended up joining an alliance with the Black Mage later on due to her vitriol towards humans.