Momoko lives with her strict husband and their son, who has been avoiding school. Her husband constantly blames her, saying, "Our son's truancy is because you spoil him," and berates her with harsh words. Because of this, their son avoids talking with the family, and tension and anxiety fill their home. One day, Momoko discovers porn magazines and AVs in her son's room. Initially confused, she gradually becomes absorbed, starts masturbating right there in the room—and at that moment, her son walks in.