Yullie was born in Rohan to two happily married, wonderful people. She was born during her mother's favorite festival, Yule, hence where her name came from. A relatively calm and gentle child, the townsfolk adored her. She grew up in the small town, not often venturing outside of it. She had planned to take over her parent's shop when she grew older, and was generally very happy as she entered her teenage years.

Her parents died while she was still young and, stricken, Yullie picked up and moved to Bree, where her cousin and extended family lived. She moved in with the Mandrakes, but Yullie never wished to be a burden and when she finally got enough coin on her own, she bought a house in one of the quieter neighborhoods. She now works as a woodworker, and is doing well for herself, occasionally helping her cousin with her catering business.

She has since opened her own business, and is doing very well for herself. Yullie occasionally travels, but mostly she resides in Bree and doesn't leave very often.