Yumi visited the share house where her son Kazuya, who left home for higher education, lives. However, Kazuya disappears on a part-time job and instead serves homemade food to his housemates, Suzuki and Aizawa. - However, they were lustful for the defenseless Eros that oozes from her, and they couldn't stand it and got drunk and forcibly pushed it down. While trembling with the shock and pleasure of the meat stick that she tasted for the first time in a long time, Yumi remembered the joy of being raped. - And while drowning in irresponsible SEX with her son's classmates, she straddles herself ...