Reiko Katherine Akimoto serves as a patrol officer at the Kameari Park Police Box. She joined the main cast later than colleagues Kankichi Ryotsu and Keiichi Nakagawa but established herself as a consistent presence in subsequent storylines. She possesses strikingly long blonde hair reaching her hips. Her eye color is blue in the manga and amber in the anime adaptations. Standing notably tall with a figure often emphasized in the source material, her measurements are cited as 95-59-90 centimeters. Her signature pink police uniform includes a short skirt and coat; the manga frequently highlights her cleavage within this attire, though the anime moderates this aspect. Off-duty, she favors expensive, fashionable clothing and experiments with hairstyles like pigtails or bobs. Born on July 7th, coinciding with the Tanabata Festival, her background is Eurasian. She is the daughter of Japanese father Pyunpyunmaru Akimoto, president of the Kobe-based Akimoto Trading Zaibatsu, and French mother Francoise Akimoto. Raised in France before moving to Japan, she received a high-class education. This upbringing equipped her with fluency in numerous languages, with one source suggesting proficiency in up to 30, alongside refined skills in ballet, cooking, music (violin and piano), and sports. She has a younger sister named Yu. Her personality is pleasant, sympathetic, and helpful; she often offers colleagues advice or makes tea. She embodies a blend of beauty and intelligence. While her looks attract frequent male attention, she consistently shows disinterest in romantic pursuits. Her father frequently pressures her about marriage, much to her annoyance. Relationships with police box colleagues are central. She shares a generally good rapport with Kankichi Ryotsu, often keeping him company while offering tea or perspectives shaped by her international background, contrasting his local outlook. She addresses him casually as "Ryo-chan." Though frequently opposing his reckless schemes out of concern, their interactions sometimes involve comedic tension stemming from accidental nudity or Ryotsu's daydreams. She maintains a particularly close and respectful relationship with supervisor Daijiro Ohara ("Bucho"), who trusts her diligence. Her dynamic with Keiichi Nakagawa is one of mutual respect and similarity; both share wealthy, Franco-Japanese backgrounds, high education, and diverse talents like violin and sports, leading her to address him as "Kei-chan." She serves as his female counterpart, though their specific interests differ. She interacts amiably with other officers, including the traffic division duo Komachi Ono and Naoko Seisho in the anime, participating in group activities. She also works alongside Ai Asato (Maria). Reiko displays consideration for the sensitive Hayato Honda, sometimes shielding him from Ryotsu's plans. Outside the force, Reiji Shiratori makes persistent, unsuccessful romantic overtures towards her. Her inherited blonde hair and blue eye color (in manga color art) are noted as genetically improbable given her Japanese father's dominant dark hair traits, with potential explanations involving albinism alleles or codominance mentioned in series trivia.