and a "9.5-head body ratio," which gives her a supermodel-like appearance. Career Overview Nanaka made her debut under the label No. 1 Style
In , Kosaka made her debut as an exclusive actress with S1 NO.1 STYLE , the most prestigious production house in the adult video industry. Her debut work was the highly anticipated release, "Shinjin NO.1 STYLE Shincho 172cm 9.5-tōshin Style Shōjo: Kosaka Nanaka AV Debut" (coded as SONE-042 ). kosaka nanaka av program top