A female college student was on her way home from vacation. She passed by a traffic light and saw a very beautiful sister in a white dress walking the same road as her. The girl smiled at the beautiful sister, and the beautiful sister smiled at her. They passed the traffic light one after another. When the girl got on the elevator, she found that the young lady was still behind her. She thought she was a new neighbor, so she waited for her sister to come up and got up together. "Sister, which floor are you going to?" The girl asked. The sister just smiled at her. The girl smiled awkwardly and turned to look at the elevator wall, but she only saw her own shadow. Her heart skipped a beat. She looked at the sister and smiled at her again, but her feet were suspended. She looked up and saw that she had reached the floor she wanted to go down. After going down, she raised her hand. At the elevator entrance, she turned around and smiled and said to the sister, "Sister, you haven't arrived yet." The sister looked at the floor number and looked at her in confusion. The elevator door was closed when she was about to get off. After the girl pressed the up button, a mark like a thin red line appeared on her head when she turned to go home. (The pen name has been modified)
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