[Reducing Mosaic]STARS-706 I was only going to let my wife's younger sister stay over because she missed the last train... But the stress from our sexless marriage exploded, and I ended up raping her all night long. Kudo Yura

Yura graduated from university and started working at a company. After going to a drinking party, she had so much fun that she missed the last train. She happened to have her sister's house nearby, so she called and asked to stay over. However... Her sister and brother-in-law both work full-time and have been busy lately, resulting in a sexless relationship. Her brother-in-law is frustrated with sexual desire... He pounced on Yura's unguarded form without any discussion, making sure his wife wouldn't find out.