The story begins when a schoolgirl visits a lingerie shop to sell her used underwear and meets the foreign store manager. As he sniffs her panties, he exclaims, "Oh! Yeah!" revealing his fetish for smells. He gets the schoolgirl to stain her underwear and aggressively pressures her, asking, "Don't you have anything better?" exposing his deeply perverted nature. From that moment, the story heats up rapidly, pulling the viewer into an intense, immersive experience.