A wealthy housewife living in Aoyama claims she's never had an affair, due to having almost no sex life at home, and satisfies her unmet desires on her own. As she shows off her lingerie and flawless skin, her natural, unshaved pubic hair enhances her retro Showa-era charm. During a sensitivity check, she lets out soft moans; inside the location van, a lewd scent fills the air as her body twitches uncontrollably from vibrator stimulation, climaxing repeatedly. When subjected to a second wave of assault with an electric massager, she insists, "No more, I can't," and leaves the van—only to shockingly return, unable to suppress her arousal any longer. Revving the engine to full throttle, she unleashes her pent-up sexual desire, transforming into a wild, insatiable woman.