Recruitment for a married women's sex life survey posted on a housing complex community board. Wives who participate are offered 10,000 yen as compensation, then suddenly shown a large cock—watch their genuine reactions unfold. Experience the real daily lives of suburban housewives! First up is a beautiful, short-haired big-titted wife, 31 years old, married for 8 years, mother of three. Her husband is a government worker with a slightly small penis. She had around ten partners before marriage. Though their relationship is good, she seems somewhat sexually unsatisfied. When asked, "How does this size compare to your husband's?" the camera reveals a massive cock—her shocked reply: "It's big..." Then, "As part of the survey, please take this in your mouth and tell us the difference!"—suddenly thrusting into deep throat. But once she takes it, she won't let go. Her naked body is revealed, and she declares, "Affairs that aren't discovered aren't really affairs—this is research!" as penetration begins. The oversized cock reaches deep into her uterus, a spot her husband never hits, triggering instant orgasm. "I'm cumming! I'm cumming!!" she screams, climaxing repeatedly even after creampie ejaculation, nearly passing out. Next is a 29-year-old, married six years, longing for another child but completely deprived of sex. She feels guilty but accepts the large cock offered to relieve her loneliness. Despite her pure appearance, she gives an intense vacuum blowjob. Her body is still in prime condition, with fair skin and gorgeous large breasts. When told "I'm about to cum," she initially protests, "No! Don't!"—but suddenly switches, screaming, "More! Give me more!!" revealing her lustful side. Of course, she's given a creampie. In addition, two extra large-breasted housewives join, totaling five sexually frustrated wives in this production.