Nakajima Riku, a pale-skinned shop clerk with an adorably nasal, slightly childish-sounding voice, answers an online ad recruiting models for a pubic-hair survey. After she sketches her own pubic hair for the supposed study, the staff asks to compare it with the real thing. She is too embarrassed, so they change tactics and claim to represent an underwear manufacturer that only needs to see her panties. The plan works, and a hesitant Riku strips to her bra and panties. When her breasts are touched amid the confusion, her nipples become stiff almost immediately. Her panties are already soaked, and rubbing her clit leaves her even wetter. From there, the shoot moves on to thoroughly enjoying her pussy inside and out.