Sound is an ordinary girl working as a clerk at a company in Tottori Prefecture. She has a cute face that seems popular, but her introverted and plain personality seems to be a hindrance, resulting in almost no contact with men. However, she claims to be a virgin and is interested in AV, so she came to audition specifically for this. Her innocence and her disproportionately large breasts for her youthful face are all out of the ordinary.