My son Kazuyoshi became a working adult this spring, and I thought I could finally feel at ease knowing he had matured. Yet, I've started noticing subtle changes in him, and an uneasy feeling has lingered every day. His behavior and attitude at work have clearly shifted from how he used to be. As I try to trace the cause, my suspicion turns toward a woman who is his superior. She seems to control Kazuyoshi like a shadow, and something inside me begins to tremble. I can't help but feel that this woman, who now guides my son's life, is gradually taking hold of his heart.