Since I was a child, I have loved to stick to my sister. I hope to be my sister's shadow in this life, because the shadow and the body are never separated. I feel very happy, but why is happiness always so short-lived? I wish I could follow her all my life, but fate separated us and she left me. I kept searching and couldn't find her. Looking at others, no one could replace her. I found her, but she doesn't recognize me anymore...
Everything started when Zhao Xiaoyu looked for Zhao Xiaohan...