Young wife Mochizuki Rei (NACR-874) is repeatedly violated by her illicit father-in-law and taught by promiscuous women.

To visit my stepmother's grave, I had to go to my husband's house. I gradually developed feelings for my gentle and considerate father-in-law, but when he saw my husband and me having sex, he said, "When we're alone tomorrow, I'll make you feel satisfied with Lei." Then he began to assault me. At first, I resisted, but as my father-in-law continued to assault me, I gradually succumbed to the vortex of pleasure...