One late night, as Chizuru returned from the bathroom, she noticed an unnatural glow of fluorescent light seeping from her son's room. Opening the door slightly, she saw him lying in bed with his underwear pulled down to his knees. His exposed lower body startled her at first, but she couldn't look away. Drawn to the sight of his large, erect penis, she hesitated, forgetting to turn off the light and leave. Forbidden fantasies surged through her mind uncontrollably. In that moment, impure desires began swirling within her heart.