DLDSS-526 From 9 AM, when my husband leaves for work, until 6 PM, I'm engaged in unprotected sex with my father-in-law, trying to make grandchildren. - Rika Aimi

To support her father-in-law, who was left alone after her mother-in-law's death, Rika moved in with her husband's family. Her husband was fastidious and overly serious, and although her father-in-law begged for grandchildren, there was no intimacy between them, leaving Rika feeling lonely. One evening, overwhelmed by loneliness, she was caught masturbating by her father-in-law. The next day, after her husband left for work, her father-in-law pushed her down. She knew she shouldn't cross the line... but Rika's body gradually began to crave her father-in-law...