Xia Zi'er, who has lived in an orphanage since she was a child, is aloof from the world and gets along well with her peers in the orphanage, but there are times when she feels depressed. Whenever she was in a bad mood, she would run to the woods behind the orphanage to vent her emotions. It was her birthday, and she couldn't help but walk into her secret base------the woods. If she knew that her involuntary behavior would change her life, would she still enter the woods as usual?