Naoki was asked by his mother to deliver a circular to his aunt's house. Looking in from the garden, he saw his aunt trying to move a heavy sofa by herself. Naoki called out to her and helped her move the furniture. As a thank you, Naoki was given some snacks, but Shiori's neat and tidy demeanor made him feel ulterior motives... Shiori was also flustered by the young and handsome Naoki's body, and ended up spilling the snacks on Naoki's pants... When she touched Naoki's crotch, she noticed that it was rock hard, and Shiori, whose husband is often away for work, felt a hot throbbing in her crotch, which had been dry for a long time.