406FSDSS-899 I couldn't forget my first love, my teacher, so I married his son, whom I didn't even love, and now he's my stepfather, and I spend every night courting him with sex.

It's been 10 years since she was dumped by her former teacher. She couldn't forget him, who had unilaterally broken up with her at the time, so she approached his son, whom she didn't even like, and married him in order to reunite with him. After some time has passed, they are reunited as stepmother and daughter, and, feeling the warmth of her beloved teacher, she engages in courtship and sexual intercourse with him every night, despite her husband being away.