Elza is a spotted hyena beastman employed as a sex worker, commonly known as a "succu-girl." She exhibits distinctive hyena traits: long blue hair, amber brown eyes, round tufted ears, and a height of 170 cm. Her anatomy includes an enlarged clitoris functioning as a pseudo-penis, consistent with real-world spotted hyenas. She typically wears short shorts and a small black bikini top.

Observers often describe her appearance as handsome, though some perceive it as intimidating or tough-looking. Her personality blends assertiveness and physical strength with demonstrated moments of gentleness during intimate encounters with specific clients. She displays flirtatious and playful behaviors, particularly in teasing interactions with Piltia. Self-confidence is evident when she expressed frustration at placing sixth in a popularity poll with 412 votes, believing she deserved higher.

Professionally, she works at the Gender-Swap Inn, an establishment facilitating transformative experiences. Her documented encounter with client Crimvael resulted in a high rating of 9, highlighting her ability to balance strength with tenderness. She later collaborated with Piltia in a filmed performance, showcasing her professional versatility.

Within narrative developments, Crimvael later expresses missing her and shows enthusiasm about reuniting, suggesting she holds significant personal importance to them beyond a single professional encounter. Information regarding her background, early life, development across extended media, or specific relationships and sexuality beyond documented professional interactions remains undocumented.