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A young man and a young woman stand outdoors at night, looking up as a massive, luminous comet with a long, colorful tail streaks across the sky, leaving a trail of light and particles. The scene shifts to a young man with dark hair and a purple and white jacket, seen from behind, turning his head to look back over his shoulder with a surprised expression against a twilight sky. The sequence concludes with a young woman with brown hair and a yellow and grey jacket, seen from behind, looking into a mirror in a library, her face reflecting shock as she stares at her own image.