My daughter has been possessed.

Li Jiuhe noticed his six-year-old daughter had recently changed. Although she had only recently learned to write, her handwriting had suddenly become neat and beautiful. She used to occasionally stumble while walking, but now she walked with a steady gait, like an adult. She would also become somber when no one was around, her eyes seeming to hold a heavy burden. Even more disturbingly, one time she suddenly asked him, "Could you give me a key to your... no, our house?" Li Jiuhe was now panicked, because he suspected his daughter had been possessed. And the one who possessed her might have another name—a time traveler!