A mother named Suzuko worries about her son who failed his university entrance exams and became a rōnin. Her husband's pressure, which only cares about appearances, makes it difficult for their son to study, causing him to have frequent outbursts of anger. One day, Suzuko is caught by her son in the act of having sex. Later, her son blames her, saying 'I can't concentrate on my studies because of your lewd appearance,' and begins to demand sexual services from his mother...
