妻は旅行に行き、継父に継娘の世話をするように頼みましたが、継父は彼女を継母の立場に置いた

The husband came home and saw that his wife was not there. After talking to her on the phone, she asked him to take care of her stepdaughter and that she would be away for 3 days. He called his stepdaughter and told him that she should replace her stepmother, so he seduced her and had sex with her.