A woman believed to be a 20-year-old student returns home, quickly eats a light meal, and immediately begins rehearsing for a theater performance. She changes into a male school uniform and practices cheer squad choreography. As she moves around, she becomes thirsty and drinks water, unaware that it has been laced with a substance—she continues drinking without suspicion. Suddenly, drowsiness overwhelms her, and she loses consciousness while still dressed in the uniform. A man who had been watching from the balcony sneaks in and begins to molest her.