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A young man in a white jacket stands on a rooftop at dusk, looking down with a tense expression, then turns and runs away from the camera across the rooftop. The scene shifts to a dark room with bright light coming through a window, then to a young woman in a school uniform looking up in shock, followed by a close-up of her wide eyes. The sequence ends with a man in glasses and a blood-stained shirt, his face and shirt splattered with blood, as a large red streak of blood flies across the screen from left to right, and a silhouette of a person falling or being thrown from a height against a br