RBD-697 _The lustful sister-in-law is determined not to let go of her sister-in-law's body

Ishihara has an older husband who, although not handsome, is extremely loyal and hard-working. It seemed like she was very happy living in such a family, but her husband's hot-headed younger brother destroyed everything. He forced Ishihara to "serve" him whenever needed. There was a secret between the two so Ishihara had to obey him. Fear was clearly visible on the sister-in-law's face when standing in front of her bastard brother-in-law. Faced with a miserable situation like Ms. Dau's, Ishihara cried, she did not know when this physical humiliation would end, perhaps she had to find a way to solve it, and the best way was to tell her husband directly about some sinful secret that she had hidden - something that she had been used by her brother-in-law to blackmail her...