My beloved daughter Miu finally got a boyfriend, Shinji, a seemingly decent young man whom my husband and I welcomed warmly—even after learning they were having sex in her room. Then one day I overheard Shinji and his friends in the park calling her nothing more than a casual fling. I confronted him and demanded that he stay away from her. He agreed to break up with Miu on one condition: I had to let him and his friends use my body as their toy...