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Yuko Kobayagawa (小早川優子) is a Protagonist of Yamamura Misa Suspense: Kinsenka Kyō Ezara Satsujin Jiken (Calendula Officinalis Kyo Picture Plate Murder Case).
Reporter of Travel Gourmet Magazine "Gurumeito". Encounter into the Murder Case during Coverage, and another coincidence will overlap and become involved in the Murder Case.