My nephew Takumi came to Mr. and Mrs. Shiraki's house on vacation. That night, even though Takumi is sleeping next door, a thrill-seeking husband spends the night on his wife, Yuko. Yuko responded to that desire while caring about her sleeping nephew. However, Takumi, who was secretly happening, became conscious of Yuko as a woman since the whole story was stuck in his head. Yuko, who noticed the gaze, also remembered the excitement of Takumi's young and strong body.