Reiko Nakamori is a big-titted married woman working as a door-to-door saleswoman for a health equipment company. Though her husband repeatedly urges her to quit her job and stay home, she struggles to take that step, held back by her indecisive nature and growing attachment to her work. Yet there's a reason behind her outstanding sales performance—her bold use of physical seduction during visits. With her enormous breasts swaying provocatively, barely contained by her blouse, she continues visiting men's homes, seeking new encounters and sealing deals through her sensual tactics.