Evalily was born to two typical lalafellin dunesfolk somewhere in a desert. Evalily has no strong ties to home however, because the desert is hot and she did not want to live a merchant's life like her parents. Customer service is just no fun.
As soon as she was old enough to leave home, Evalily bolted. She was drawn to the more temperate climate of Gridania. While exploring Gridania, she ran into a bland, but gentlemanly hobo whose name was simply, "Two". He mumbled something about being a hobo, and that he could totally use a healer friend. Although he was rude and a total weirdo, Evalily befriended him and eventually regarded him as part of her family. They tossed aside their old surnames and made a new one for the new family they had made. They called themselves the Listens, to remind themselves of the importance of listening to and caring for your loved ones.
As per Two's suggestion, Evalily became a healer, joining the Conjurer's Guild. Two switched from the Hobo class into the Arcanist class. Evalily eventually took up weaver to make Two some decent clothes, while Two took up what he called "Alchemy". (Evalily expected he was just trying to concoct the ideal cup of coffee under the guise of science).
They wandered around Eorzea as homeless vagrants. Vagrants, not hobos, because there is a difference and Evalily is totally not a hobo. As they came close to mastering their chosen classes, they sought out a real home. They tried quite a few places, but with no success. Finding a home they felt they could fit into turned out to be a difficult task.
One day while walking through the housing district in Limsa, (the streets of which were Two's old home) Evalily and Two stumbled upon Nanai, a cute lalafellin girl and House Aynvals. Everything from Nanai's kind, welcoming face to the house's design to the house's emblem gave the wandering pair a good feeling. They met the leader, Austherus and joined House Aynvals. It didn't take them long to know for certain that they finally had found their home. Now they enjoy a life of comfort and happiness. For the most part anyway. Evalily could never help Two escape his prankster ways, so she would forever be on the receiving end of his tricks. In return, Two would always be on the receiving end of Evalily's kicks.
Two years after this story took place, Eva won the Annual Lalafellin Weight Lifting Competition. Two skipped leg day and lost the Annual Hyur Weight Lifting Competition. He tore a leg muscle. He went on to make a partial recovery.