Gwendolyn Gloine is a flightless swallow with blue plumage, hailing from the Ullanth Mountains. As a Gloine, she is a member of a vast family of glass merchants and craftsmen, though as a branch member, this doesn't actually give her any weight to swing around. In addition, she has run away from her family and responsibility as heir after her father's passing, hoping her older sister can take over the family glassblowing business. Gwendolyn has regrets about this, especially with how she never exactly told her sister and father that she wasn't the brother or son they thought she was, but she stands by her decision.

Gwendolyn still practices glassblowing, as can be seen from her growing collection of durable glass equipment; most notable is the mask she always wears, made out of enchanted and stained purple glass that manages to both conceal her face and improve her eyesight. Given that she still uses her surname, the disguise factor might not work all that well, but it at least keeps the dysphoria at bay.