Daisuke witnesses his mother's affair and decides that, as her son, he must control her sexuality. He tries to punish her defiance with creampies, but instead of showing remorse she only becomes filthier and more aroused, driving his training to new extremes. Endless oral service and forced deepthroat crush her resistance before he forces raw penetration. Even when she cries and begs, the humiliating abuse never stops, reducing the once-strong mother to total, degrading sexual submission.