Roco, accurately named Roko (ロコ), is a female Roborovski hamster Sweetspet composed entirely of orange macarons. Her appearance combines light orange fur on her belly, paws, tail, and head with deeper orange tones across her body and ears. She displays striking orange-red eyes and cream-colored hair fastened by two pink floral accessories. A blue beaded necklace featuring an orange-red diamond-shaped jewel accents her neck.

Originating from Sweetsland among numerous Sweetspets, Roko shares quadruplet sibling bonds with Mako, Kako, and Koron. Official sources confirm her birthday as November 11.

Within the anime series, Roko holds a minor presence. She first emerges in episode 38a of *Jewelpet Sunshine*, attending a Christmas celebration. Later, in episode 19 of *Jewelpet Kira☆Deco!*, she joins fellow Sweetspets offering confections to celestial bodies.

Her most prominent role unfolds in *Jewelpet the Movie: Sweets Dance Princess*, where she serves under Duke Crème de Brulée alongside Sweetspets Chocola, Mako, Kako, and Koron. This servitude during the film constitutes her sole documented occupation.