Satomi Kobayashi is a cheerful, naturally busty housewife with no bra and a warm personality who moves into a new town. Raised among brothers, she has little caution around men and remains unaware of how her large breasts attract the men around her. The slightest jiggle of her nipples and her oversized curves begin to stir the desires of the men nearby. Unable to resist, one after another, they embrace her defenseless breasts and fall helplessly under her spell.