It had been nearly three years since her husband moved away for work. A devoted teacher who maintained her professional integrity after marriage, Ai grew increasingly anxious as the emotional distance between her and her husband widened. One day, she was suddenly struck by dizziness during class and began suffering from unexplained symptoms. She was later diagnosed with hormonal imbalance caused by a prolonged lack of sexual activity, yet she couldn't bring herself to discuss it with her husband, left only to suffer in silence. To make matters worse, she faced a new crisis—her students discovered she was sexually frustrated.