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Lin Anran, who has returned from abroad, wins the right to use a room in a lottery event. Upon arriving, she discovers that her roommate is her first love, Zhang Haochen. Details in daily life trigger Lin Anran's memories of her high school days with him. As she is overwhelmed by these memories, her thoughts return to reality, and they clear up their misunderstandings. Just as they are about to kiss, Lin Anran suddenly wakes up in her bed at home, realizing that it was all a dream. Today is her
