Silver Cat Hitomi operates as a member of the enigmatic Seven Ring Circus, central to events in the official media adaptation. Her pseudonym reflects her acrobatic expertise within the troupe, where she performs alongside specialists like hypnotists, magicians, and individuals with unique abilities.

She demonstrates exceptional agility and physical prowess, utilizing her acrobatic skills in circus performances and high-stakes thefts, making her a formidable opponent and escape artist. Her characterization emphasizes cunning and intelligence, driven by a stated desire for thrill-seeking experiences. She lives by a philosophy prioritizing the excitement of challenging games above all.

Within the narrative involving the legendary cursed gemstone, the Rose of Linden, Silver Cat Hitomi and the Seven Ring Circus preemptively steal the jewel before the Phantom Thief Queen can claim it. This action sparks direct conflict, prompting Queen to challenge the circus troupe members individually to retrieve the gem. Hitomi's involvement is integral to the ensuing game of wits and skill between the troupe and Queen.

Her path crosses with a young reporter, Haruto, during one heist. Their interaction develops around a shared fascination with circus performances, forming a connection that influences their pursuits. Haruto's reporting on her activities as Silver Cat Hitomi intertwines their paths.