Jiu Xi, an ordinary girl, received a mysterious black package one day. After opening it, there was a black bead inside. Jiu Xi reached out to take it, and as soon as her hand touched the bead, she was surrounded by a burst of white light, and then she fainted. After waking up, she found that her head was in a different place and she had turned into a baby. Who could tell her where she was? Why is she here!