Shortly after remarrying, Yumi found herself without her husband's attention as he took on a major project, leaving their nights empty. Brave Yumi patiently waited for his work to settle down, but after six months, there was no sign of it calming. She continued to comfort herself alone. One day, as Yumi was indulging in her usual pastime, she was suddenly attacked by Shinichi, her stepson. "I can treat you better than my old man..." Shinichi's sweet whispers planted doubts in Yumi's heart...