Occasionally, she would feel a piercing gaze in her chest… and there was always her son, Takahiro. Sayaka began to feel anxious about Takahiro as he entered puberty. And that anxiety came true. 'It hurts...' One night, as she slept in her room, Sayaka felt something amiss. When she opened her eyes, she found herself bound with rope. 'What is this? What's going on?' In front of her panicked gaze stood Takahiro, smiling…
