Even though Xia Ye'an is now on the other side of the ocean, she still remembers the New Year's Eve night when she was 13 years old. The fireworks suddenly set off in the small alley, and passers-by had to stop. She suddenly saw him, whom she hadn't seen for a long time, standing on the other side of the fireworks and smiling at her. Is the path a person will take determined by a firework that you inadvertently decide?