The girl wrote a sentence on the last page.
At this point, the camera starts pulling up from the notebook, not revealing the diary's contents to Yu Liang outside the shot, but Yu Liang saw that sentence.
"Today, I finally regained my freedom."
Then, the frame focuses on the girl in the mirror. She's staring intently at the girl outside the mirror, but the next second, she reveals a surprised expression.
Because the girl outside the mirror has noticed her existence, lifts her head to look at her, her eyes are calmer than the ghost in the mirror: "Who are you?"
"Me? I'm you." The mirror spirit laughed, "Of course, you can call me Mirror Spirit."
"Mirror Spirit?" The girl blinked, "The ghost in the mirror?"
"No, no, no, I'm not a ghost, I'm you." The mirror spirit laughed, she spun around once in the mirror, "Look, I'm identical to you, I know everything about you, and I know what you're going to do."