Rio, a slightly clumsy office lady, has a problem with being a "sweaty person." On tropical nights, she can't sleep because she sweats little by little, so she masturbates. When she overslept and dashed off to a client, her shirt stuck to her body with sweat and her underwear was visible, so she was mistaken for a sex worker. When she was called by her boss, she broke out into a cold sweat and her sex worker was discovered. Her boss also tried to get her to have a relationship with him, and she couldn't refuse... "Are there sweat stains? Is the smell okay?" Her shiny body dripping with sweat, which is a source of worry, takes away the man's reason, and she gets caught up in one mishap after another.