A brother-in-law who came back to his parents' house after a long time on a train from Tokyo all the way. Kaori Otonashi, who I haven't seen in a long time, is fascinated by her exquisite beauty and sophisticated body. While spending time together, the brother-in-law gradually begins to be frustrated with his brother-in-law. And from the moment the older brother went out and was alone with the sister-in-law, the brother-in-law and the sister-in-law finally became one.
