This is the 47th reprint of the legendary masturbation work "Virtual Ona" by the genius director Takuto Watanabe. Nana, a private detective, sneaks into a house to investigate the husband. As she waits outside the living room, the husband arrives with a woman and she hears his erotic voice. Nana can't help but masturbate while hiding. Soon the husband leaves and Nana sneaks into the living room. However, before the investigation can begin, she sits on the sofa and starts masturbating. Eventually, she changes into blue lingerie, pushes aside her see-through panties, and cums with a vibrator.