Branwyn is a mysterious young woman who stands at 5'6" with long, silvery blue hair (sometimes braided and pinned up in an elaborate fashion), fierce eyes, a deceptively demure and feminine frame, and an often dangerous, imperious disposition. Her origins are unknown, but it is speculated that Branwyn is god-blooded. The woman has exhibited talent (both physical and esoteric) that far surpasses that of human beings, or even fae. Many have underestimated the girl only to fall before her nearly titanic power or the edge of Karis Mordai, her runic blade.

Branwyn has a fondness for tight fitting leathers, and is most often wearing a snug argentum threaded bodysuit, matching boots, and outer robe. When not garbed for court or battle, she can be spotted wearing any number of fashions favored by young ladies from the upper Magocracy.

She is a domineering presence by nature, possessing a rebellious attitude towards direct authority, and though quiet by most standards, she is determined once her mind is made up, and quite impossible to sway otherwise once she has done so. As the current Gatekeeper, her plans usually align with those of her mistress, the Witch-Queen Eurydice l'Astaroth. Branwyn is supremely obedient when it comes to the commands of the queen.

It is rumored that Branwyn was among the first girls selected for the G.O.D.D.E.S. project and remains, to date, the greatest of Eurydice's disciples. In this capacity, she is ever watchful for the appearance of other girls worthy of the queen's attention.