Sonoko Suzuki features as a secondary character in *Detective Conan: The Stranger From 10 Years Later*. As Ran Mouri's best friend and Teitan High School classmate, she displays an impulsive yet fiercely loyal personality. This loyalty surfaces when she urges Ran to reevaluate her relationship with the often-absent Shinichi Kudo, proposing the more accessible Dr. Tomoaki Araide as a potential alternative partner. In the OVA's ten-year-future scenario, Sonoko remains deeply embedded in Ran's family life. She shares a casual drink with Kogoro Mouri at the Mouri Detective Agency while discussing Yoko Okino's retirement from music, underscoring her enduring presence in their circle. Her background as the second daughter of the extremely wealthy Shiro and Tomoko Suzuki—with older sister Ayako and Kaitou Kid-obsessed uncle Jirokichi—remains unchanged. Despite her privilege, Sonoko approaches friendships with down-to-earth sincerity, ensuring financial differences never strain her bond with Ran. Though committed to her long-distance relationship with Makoto Kyogoku, Sonoko occasionally reveals her appreciation for attractive men while steadfastly maintaining loyalty to Makoto. Her dramatic flair and protective instincts shine through her blunt counsel to Ran about Shinichi’s neglect, emphasizing her focus on Ran’s emotional welfare. While her "Deduction Queen" persona—stemming from Conan Edogawa’s covert use of her as a deduction proxy—goes unmentioned in this OVA, her confident and outspoken demeanor aligns with this established trait.