Ryou Shihono was a Japanese entertainer whose career encompassed voice acting, gravure idol work, and live-action performance. She was born on September 7, 1991, in Kanagawa Prefecture, Japan. Shihono began her career in the entertainment industry in 2003 while still a junior high school student, initially gaining attention as a gravure idol featured in numerous magazines and photobooks. Her career in the industry continued until her retirement from entertainment activities in 2017.

As a voice actress, Shihono is primarily recognized for two roles in anime productions from the mid-2000s. She provided the voice for the character Ami in the original animation video series Cream Lemon: New Generation, a part of the long-running Cream Lemon franchise. Her most prominent voice role was as Tomo Minaguchi, the protagonist of the 2006 television anime series Lemon Angel Project. In this series, which follows the formation of a new version of a fictional pop idol group, she voiced the lead singer character. In addition to her voice work for the series, Shihono also performed the opening theme song for multiple episodes of Lemon Angel Project.

Beyond these two roles, there is no widely documented information about a broader body of work in anime voice acting. Shihono's career was multifaceted, with her activities as a live-action actress and gravure idol being more extensively documented. Her live-action credits include roles in television dramas such as Jikuu Keisatsu Wecker Signa and Taisetsunakoto wa subete Kimi ga Oshiete kureta, as well as appearances in numerous films and direct-to-video releases. Her career concluded with her retirement from the entertainment industry in 2017, after which she pursued other endeavors.