FERA-168 The mother, Saiki Oishi, was continuously raped and humiliated by her insolent and hated son.

Saki and her son Shingo have a bad relationship, and now their relationship has deteriorated to the extent that they curse each other every time they meet. On this day as well, they are in a state of abusing each other, and Saki pours out the words "I'm not popular" that Shingo was worried about. Shingo's pride is trampled and anger explodes. He counterattacks with his physical strength. He tries to resist, but there is no way he can resist the young man with Saki's power... Saki will be treated humiliatingly forced to do physical service to her child.