The 47th reissue in the popular "Virtual Onahole" series directed by the brilliant Taketo Watanabe. This time, private detective Nana sneaks into a client's home to conduct a personal investigation. While lying in wait outside the living room, the homeowner suddenly returns with a woman, engaging in explicit conversation. Unable to resist, Nana begins masturbating while hiding nearby. What started as surveillance gradually turns into personal fascination, and she creeps into the living room, sitting on the sofa and losing herself in self-pleasure. Eventually, she changes into blue lingerie, pulls aside her sheer panties, and climaxes with a vibrator. Her innocent desires and the natural progression of her masturbation showcase the director's exceptional talent.