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.
