Yang San Jie Gao Zhuang.

It tells the story of a murder case that shocked both the government and the public at the end of the Qing Dynasty and the beginning of the Republic of China. In order to avenge her sister who died tragically, the young girl Yang San overcame many obstacles and appealed at all levels, and finally brought the murderer to justice. (Source: Chinese = Baidu || Translation = MyDramaList)