Saeko was worried about the deteriorating relationship between her daughter and son-in-law. However, she felt that she herself was the cause of their growing distance. Her son-in-law's intense gaze had long been stimulating her body. Each time she felt that gaze, her heart raced and her body ached with desire. Her daughter might have sensed these feelings. Saeko wavered between her duty as a mother and her primal desire for a man. That night, her son-in-law came to her bedroom, seeking a relationship that would cross the line. Torn between her love for her daughter and her own overwhelming desire, Saeko's heart trembled with conflict.