Kyoko Izumiya appears in the anime Re: Cutie Honey. She works as a cleaning lady at the same company where Honey Kisaragi is employed. Beneath her unassuming exterior, she is a former legendary spy who gained fame during World War II. Her present occupation serves as a cover for her true activity: covertly observing Honey and the actions of the criminal syndicate Panther Claw.

Kyoko is a reserved and efficient individual, projecting the image of an ordinary worker to avoid attracting attention. Her personality is understated, and she carries out her duties with quiet diligence, while her mind remains sharp and perceptive. Her primary motivation is to keep a watchful eye on the conflict between Honey and Panther Claw, gathering intelligence from the sidelines without revealing her past.

Within the story, Kyoko occupies a supporting background role. She does not participate directly in combat or adventure; instead, she functions as a hidden observer whose knowledge and awareness add an undercurrent of intrigue. Her interactions with Honey are limited to casual coworker exchanges, and their relationship never deepens beyond that surface-level acquaintance, as Kyoko keeps her true identity concealed. She does not undergo notable personal development during the events of the series, since her purpose is tied to providing silent surveillance.

Kyoko’s most significant ability is her mastery of espionage and infiltration, a skill set honed from decades of experience. She is adept at blending into everyday environments, monitoring targets without detection, and processing information with a calm and analytical mind. These skills allow her to track Panther Claw’s activities while remaining a seemingly innocuous figure in the workplace.