A woman seeking pleasure through nipple stimulation. To test the unscientific stereotype that "girls with small breasts are more sensitive," petite-breasted beauty Watase Anna takes the spotlight. Her nipples and sensitive erogenous zones are carefully stimulated and examined. To make things more interesting, instead of a typical partner, overweight male performers are cast—creating a striking contrast with the slender girl. Presenting a documentary-style work focused on nipples, featuring the unique combination of a small-breasted, highly sensitive beauty versus obese, unattractive male actors.