19-year-old "Chisa Watanabe" living in Osaka made her AV debut from her youth. Although she remains innocent, she has a metamorphosis that cannot be imagined from its appearance. She decided to appear in AV to satisfy her boyfriend's cuckold desire. At first, such a girl is confused by the shooting that she is not accustomed to, and although she is ashamed, her body is straightforward and gradually turns into excitement.