Avenue is an anthropomorphic rabbit appearing across multiple franchise installments. In *Jewelpet Twinkle☆*, she works as a waitress at Jewel Land's Strawberry Café, sometimes taking orders and serving desserts to protagonists like Akari and her friends. She appears infrequently, primarily functioning as a background character.

Within *Jewelpet Kira☆Deco!*, clones of Avenue serve as messengers of the moon under Luna's command. These clones operate as distinct individuals, visually identical to the original Avenue but lacking any established familial or narrative link to her *Twinkle☆* counterpart. One clone specifically adopts the role of "Deco Claus," tasked with delivering presents across Jewel Land each year. The series does not define the relationship between these clones and the original Avenue.

Visually, Avenue consistently possesses pink fur and green eyes. Her standard attire in *Twinkle☆* features a yellow waitress cap decorated with pink polka dots and a strawberry clip near her left ear. She wears a green-collared dress, a red shawl, a polka-dotted apron, yellow long socks, and red shoes. This character design remains uniform across all her appearances, including the clones in *Kira☆Deco!*.

Documented sources show no further background, development, or narrative significance for Avenue or her clones in other franchise media such as films, OVAs, or spin-offs. Her role remains limited to brief, non-central appearances without elaborated story arcs or evolution.