Ye Yutong, a 12-year-old girl, since her father was killed for no reason, everyone and everything around her has changed. First, she was rejected by her stepmother, kicked out of the house, and then betrayed by her friends. However, she was not discouraged and finally found out the inside story of her father's murder, so she embarked on the road of revenge. It was that cold-blooded devil, Yin Yin! ! ! From then on, their fates were entangled...