Sonoko Suzuki, a 17-year-old Teitan High School student and self-proclaimed "Deduction Queen," balances her life as a wealthy heiress with down-to-earth charm. Childhood friends with Ran Mouri since kindergarten, she navigates adolescence with impulsive energy and romantic idealism, often orchestrating elaborate schemes to attract crushes—until karate champion Makoto Kyogoku saves her from a serial killer, anchoring her flirtatious spirit into a devoted long-distance relationship. Though she crafts handmade gifts for Makoto, traces of her playful flirtations linger. Hailing from the influential Suzuki family, second only to the Karasuma conglomerate, she dismisses leveraging her wealth for social clout. Her uncle Jirokichi’s rivalry with Kaitou Kid fuels her secret admiration for the phantom thief, cheering his heists despite family disapproval. When Conan Edogawa’s tranquilizer watch temporarily sidelines her during cases, she unknowingly voices his deductions, later claiming credit with theatrical pride. Her bond with Ran thrives on teasing camaraderie—inscribing "Love Shinichi" on Ran’s practice gi or reminiscing about defending her from childhood bullies. Playful jabs at Conan, like exploiting child discounts or dubbing him "Lovely little boy," mask her sharp wit. Clad in casual skirts and signature bandannas, she adapts her style—even sporting a perm—to suit adventures spanning high-society galas, crime scenes, or family clashes over her spirited defiance. Whether accessing exclusive venues through Suzuki connections or prioritizing friendships over privilege, Sonoko’s blend of loyalty, humor, and dramatic flair cements her as both a grounded heiress and an accidental detective.