In 2007, 16-year-old girl Qiao Qing Yu and her family, tormented by rumors about her sister Qiao Bai Yu's death, were forced to relocate from their small county town of Shunyun to the provincial capital of Huanzhou. In order to quickly restore their family's normal life, Qing Yu, with the help of her classmate Ming Sheng, began searching for the true cause of her sister's death. As the truth gradually revealed, Qing Yu was shocked by the injustice her sister Bai Yu had endured and resolved to seek justice for her.