Tamotsu, a job-seeking nephew, visits Tokyo during his break and stays at his aunt's place. Since her husband is away on a work assignment, she isn't looking forward to spending time alone. Noticing Tamotsu's physical maturity, she begins deliberately provoking his sexual desire—flashing glimpses of her underwear, speaking in ways that excite him, slowly stoking his passion. Eventually, Tamotsu's cock becomes erect, and his aunt pulls it out from his pants, slowly starting to stroke it. The warmth of her touch and the strange, growing connection between them deepen the story.